GRAZ: Tattoo Convention, through May 5.
KREMS: Donau Festival, avant-garde visual and performing arts, through May 4.
BREGENZ: Bodensee Klassik, classic auto rally around Lake Constance, through May 4.
VIENNA: Genuss Festival, Austrian culinary specialties, Stadtpark, May 10-12.
VIENNA: Wiener Festwochen, theater and orchestra, May 10-June 16.
DIERSBACH: INNtöne Festival, jazz festival, May 17-19.
SALZBURG: Whitsun Festival, highlights Baroque music, May 17-20.
VIENNA: Austrian Women’s Run, largest women’s run in Europe, May 26.
GRAZ: Springfestival, electronic music and art festival, May 29-June 2.
VIENNA: Summer Night Concert, free open-air concert, Schönbrunn Palace, May 30.
BAD AUSSEE: Narcissus festival, May 30-June 2; parade of decorated boats at 2:30 p.m. June 2.
SAALBACH-HINTERGLEM: Biker Mania, Harley motorcycle meet, Glemm Valley, May 31-June 2.
ST. POLTEN: Beat Patrol, dance festival, May 21-June 2.
BRUSSELS: Brussels Short Film Festival, through May 4.
LIEGE: Jazz Festival, Palais des Congres, through May 4.
ARLON: Arel Tattoo Show, concerts, car and bike expo and burlesque shows, Hall Polyvalent, May 4-5.
MONS: Bière en Fête, beer fest, Grand Place, through May 5.
BRUSSELS: Laeken greenhouses open, through May 12.
BRUSSELS: Les Nuits Botanique, open-air concerts, through May 13.
BRUSSELS: Kunstenfestivaldesarts, festival of theater and visual arts, through May 25.
BRUSSELS: Iris Festival, music and street entertainment, Rue du Lombard, May 4-5.
NAMUR: Namur en Mai, comedians and magicians, May 8-12.
ANTWERP: Taste of Antwerp, culinary festival, Vlaamse Kaai,May 9-12.
JETTE: Bierproeffestival, beer sampling, EhB Campus, May 18.
CERFONTAINE: Brass’Heure, sampling stouts and regional beers, May 18-19.
BRUSSELS: Brussels Jazz Marathon, free jazz performances, May 24-26.
GESVES: La Grande Fete de Bacchus, wine fest, Ferme de Houyoux, May 25-26.
MONS: St. Waudru Procession, procession of the Golden Carriage and Battle of the Lumeçon, May 26.
BRUSSELS: Brussels 20 km, cycling and walking event, May 26.
PILSEN: Liberation festival, through May 6.
PRAGUE: Volkswagen Prague Marathon, May 12.
PRAGUE: Prague Spring International Music Festival, May 12-June 2.
PRAGUE: St. John’s Navalis, festivities near Charles Bridge, May 15.
PRAGUE: Book World Fair and Literary Festival, May 16-19.
PRAGUE: Czech Beer Festival, Expo Center Prague Holesovice, May 16-June 1.
PRAGUE: Shanty Fest, free festival of shanty choirs, May 17-18.
VLCNOV: Ride of the Kings, traditional Moravian folklore festival, May 24-26.
PRAGUE: Prague Food Festival, May 24-26.
PRAGUE: Fringe Festival, May 24-June 1.
PRAGUE: Khamoro, festival of Roma culture, May 27-June 2.
PRAGUE: Tanec Praha, international festival of contemporary dance and movement theatre, May 27-July 4.
RIBE: Viking Market, Ribe VikingeCenter, through May 5.
COPENHAGEN: Ink Festival, international tattoo meet-up, Tap1, May 9-11.
COPENHAGEN: Medieval Market, Valby Park, May 17-20.
COPENHAGEN: Carnival, Faelledparken, May 18.
COPENHAGEN: Nykredit Copenhagen Marathon, May 19.
COPENHAGEN: Beer Festival, Tap1, May 23-26.
AALBORG: Carnival celebrations, including parade, May 25.
COPENHAGEN: Distortion Festival, street and nightlife festival, May 29-June 2.
WOODSTOCK: Jousting Tournament, Blenheim Palace, May 4-6.
LONDON: Canalway Cavalcade, canal boats in Little Venice area by Grand Union Canal, May 4-6.
MALDON: Maldon Mud Race, participants cross muddy riverbed, May 5.
LONDON: London Burlesque Fest, Bush Hall, May 10-19.
NORWICH: Norfolk and Norwich Festival, circus, music, theater and dance, May 10-26.
BRISTOL: Grillstock, barbecue and music festival, May 11-12.
LONDON: Covent Garden May Fayre & Puppet Festival, May 12.
LONDON: Museums at Night, May 16-18.
CAMBRIDGE: CAMRA Cambridge Beer Festival, Jesus Green, May 20-25.
LONDON: Chelsea Flower Show, May 21-25.
SALISBURY: International Art Festival, street entertainment, May 24-June 8.
LONDON: The Great British Tattoo Show, Alexandra Palace, May 25-26.
DUXFORD: Spring Air Show, 70th anniversary of the USAF at RAF Duxford, May 26.
PARIS: Contemporary art market, Place de la Bastille, through May 5.
PARIS: Foire du Trône, fun fair, Pelouse de Reuilly, through May 6.
PARIS: La Nuit aux Invalides, illuminated buildings, Mon.-Sat. through May 7.
ORLEANS: Joan of Arc Festival, through May 8.
PARIS: Foire de Paris, lifestyle expo, Paris Expo/Port de Versailles, through May 12.
METZ: May Fair, amusement rides, Expo grounds, May 4-26.
PARIS: Marvelous Island Festival, electronic music, L’Île de la Porte Jaune, May 7-11.
LYON: Nuits Sonores, festival of indie and electronic music, May 7-12.
BIARRITZ: Festival des Arts de la Rue, concerts and street entertainers, May 9-12.
STRASBOURG: Tattoo World, Centre Culturel Marcel Marceau, May 9-12.
CANNES: Festival de Cannes, film festival, May 15-26.
STRASBOURG: Museums night, May 18.
METZ: Les Puces de Metz, flea market, Expo, May 18, June 1 and 15.
MAINZ: Wine Days, 70 vintners between Theodor-Heuss-Brücke und Kaisertor, through May 5.
MUNICH: Tattoo & Piercing Show, Tonhalle, through May 5.
MUNICH: Auer Dult, fun fair, through May 5.
BAYREUTH: Maisel’s Weissbierfest, through May 5.
BONN: Craftsmen’s market, Munsterplatz, through May 5.
MANNHEIM: Maimarkt, consumer goods show, through May 7.
BONN: Rhine in Flames, May 4.
FRANKFURT: Night of Museums, May 4.
NUREMBERG: Blue Night, art and culture by illuminated landmarks, May 4.
NÜRBURG: Fisherman’s Friend StrongmanRun, team endurance competition, Nürburg Ring, May 4.
SCHWETZINGEN: Asparagus Fest, May 4-5.
WÜRZBURG: International Kinderfest, children’s play day for charity, May 5.
HEILBRONN: Trollinger Marathon, course through vineyards, May 5.
BAD DÜRKHEIM: Stadtfest, May 8-12.
MUNICH: International Documentary Film Festival, May 8-15.
ULM: Middle Ages Market and Knights jousting, Kloster Wiblingen, May 9-12.
PFORZHEIM: Bierborse, sampling beer, pedestrian zone, May 9-12.
HAMBURG: Harbor Fest, May 9-12.
REGENSBURG: Mai Dult, fun fair, May 9-26.
WEINGARTEN: Blutfreitag, horseback religious procession, May 10.
NUREMBERG: Trempelmarkt, huge flea market, May 10-11.
WÜRZBURG: Baroque Fest, wine and culinary treats, Residenz, May 10-11.
WIESBADEN: Henkell Sekt Day, tastings and music, Henkell Sektkellerei, May 11.
MUNICH: Long Night of Music, musical events in 100 venues, May 11.
RÜDESHEIM: German Sekt Days, May 11.
LINDENFELS: Middle Ages Spectaculum, May 11-12.
NUREMBERG: Tattoo Convention, Nuremberg Arena, May 11-12.
ZWEIBRÜCKEN: Street theater spectacle and flower market, May 11-12.
MUNICH: Art and Antiquities, Paulaner am Nockherberg, May 11-20.
MAINZ: Mainz Gutenberg Marathon, May 12.
DRESDEN: Dixieland Jazz Festival, May 12-19.
BAMBERG: Wine fest, Maxplatz, May 16-20.
LUDWIGSBURG: International Street Music Festival, May 17-19.
BERLIN: Carnival of Cultures, street party, May 17-20; parade on May 19.
STUTTGART: SWR Sommerfestival, Shlossplatz, May 17-20.
WIESBADEN: International horse riding tournament, Biebrich Castle, May 17-20.
BAMBERG: Tattoo convention, Hauptsmoorhalle Strullendorf, May 18-19.
HEIDELBERG, MANNHEIM AND LUDWIGSHAFEN: International German Gymnastics Festival, May 18-25.
AMBERG: Pfingst Dult, Volksfest, May 17-26.
FRANKFURT: Waldchestag, city’s “national day” in the forest, May 18-21.
WÜRZBURG: iWelt Marathon, May 19.
WINTERBERG: Red Bull Berg Line, Dirt Masters Bike Festival, May 19.
HEIDELBERG: Castle illuminations, May 20 and June 1.
HAMBURG: Elb Jazz Festival, May 24-25.
KAISERSLAUTERN: Lautrer Kerwe, fun fair, Messeplatz, May 24-June 3.
HAMBURG: Red Bull Man Tau, tug of war, St. Pauli district, May 25.
DUSSELDORF: Japan Day, Japanese culture by the Rhine, May 25.
FRANKFURT: Skyscraper festival, May 25-26.
NUREMBERG: Franconian beer fest, May 29-June 2.
WURZBURG: Wine village fest, Oberen and Unteren Markt, May 29-June 9.
WIESBADEN: International Old Timer Rally, classic autos by Kurpark, May 30-June 2.
WÜRZBURG: Africa Festival, Afro Music Festival, May 30-June 2.
DARMSTADT: Schlossgraben fest, music fest, May 30-June 2.
RÜDESHEIM: Magic Bike, Harley Davidson meet-up, May 30-June 2.
BUDAPEST: Floralia, Roman-style celebrations, Museum of Aquincum, May 11-12.
BUDAPEST: Palinka Festival, Hungarian brandies, May 16-19.
BUDAPEST: Hay Festival, festival of authors and thinkers, May 17-20.
KISKORÖS: National Strudel Festival, concerts, folklore and crafts, May 18-19.
BUDAPEST: Festival of Museums, music and theater, May 19-20.
CORK: International Choral Festival, through May 5.
DUBLIN: Camden Crawl Dublin, 150 live music and comedy acts, through May 5.
DUNDALK: Vantastival, camping van fest, Bellurgan Park, through May 5.
RENVYLE: Connemara Mussel Festival, through May 5.
BALLYDEHOB: Ballydehob Jazz Festival, through May 6.
BELFAST: Festival of Fools, street theater festival, through May 6.
DINGLE: Féile na Bealtaine Arts Festival, music, literature, art, photography, children’s events and street parade, through May 6.
LIMERICK: Riverfest, barbecue, fireworks, fashion, more, through May 6.
KILKENNY: Roots Festival, country, folk, blues, bluegrass, rockabilly and more, through May 6.
MULLINGAR: Festival of the Fires, national celebration, Hill of Uisneach, May 4-5.
BLANCHARDSTOWN: Fingal Film Festival, emerging film-makers, Odeon Cinema, May 8-10.
GALWAY: Early Music Festival, May 9-12.
DUBLIN: Dublin Dance Festival, contemporary dance event, May 14-26.
DUBLIN: Docklands Summer Festival, Grand Canal Dock, May 17-19.
DUBLIN: Writers Festival, May 20-26.
WARREN POINT: Guinness Blues on the Bay Festival, May 22-27.
DUBLIN: Dublin City Soul Festival, multicultural festival, May 23-26.
DUBLIN: Bloom in the Park, gardening and food event, Phoenix Park, May 30-June 3.
CAGLIARI: Festa di Sant Efisio, fest of Sardinia’s patron saint, through May 4.
ASSISI: Calendimaggio, Middle Ages fest, through May 4.
ROME: International Tattoo Expo, Ergiffe Palace Hotel, through May 5.
FERRARA: Palio, races and processions, May 4-5, 11-12, 18, and 24-26.
STERZING/VIPITENO: Blues Days, May 6-12.
CAMPOSANO: Palio de Casale, May 11-12.
VENICE: Festa della Sensa, celebrates city’s “marriage” to the sea, May 11-12.
CAMOGLI: Sagra del Pesce, fish festival, May 12.
PALERMO: World Festival on the Beach, May 14-19.
GUBBIO: La Festa dei Ceri, fest of the candles, folklore event, May 15.
SOAVE: Medieval and white wine festival, May 16-19.
NOTO: Infiorata, elaborate flower petal artwork, May 17-19.
ORVIETO: Festa della Palombella, descent of dove from city cathedral, May 19.
MILAN: Taste of Milano, restaurant festival, Superstudio Piu, May 30-June 2.
CITY: Spring Fair, LUXEXPO, lifestyle fair, Luxembourg-Kirchberg, through May 10.
CITY: Invitation to the Museums, open doors, city and countrywide, May 18-19.
CITY: All American Music Festival, free concerts, Place Guillaume II, May 18-20.
ECHTERNACH: Dancing procession, pilgrim’s procession, May 21.
CITY: Danz Festival Lëtzebuerg, contemporary dance, CarréRotondes and Banannefabrik, May 23-26.
MONTE CARLO: Grand Prix of Monaco, Formula 1 race, May 23-26.
AMSTERDAM: World Press Photo Exhibition, Oude Kerk, through June 23.
HAARLEM: Bevridjingspop, music festival commemorating freedom, May 5.
MAASTRICHT: El Dunya, multicultural festival, May 9.
AMSTERDAM: Rolling Kitchens, mobile food stands, Westergasfabriek, May 9-12.
COUNTRYWIDE: National Mill Day, windmills open to visitors, May 11.
MAASTRICHT: Sint Servaasfair, spring fair, Vrijthof square, May 11-20.
MAASTRICHT: Kunst Tour, artists present their works, May 17-20.
SCHEVENINGEN: Delta Lloyd North Sea Regatta, May 17-20.
UTRECHT: Festival an der Werf, developments in dance and theater, May 17-26.
AMSTERDAM: Pacha Festival, dance music fest, Java Island, May 18.
AMSTERDAM: Indiestad, indie music fest, May 18-26.
AMSTERDAM: TIKTAK, Eclectic Music Festival, Arena Park, May 19.
BREDA: Dancetour, free dance fest with DJs, May 19.
THE HAGUE: Tong Tong Fair, Eurasian culture, May 22-June 2.
AMSTERDAM: London Calling, indie music festival, Paradiso, May 24-25.
AMSTERDAM: Amsterdam Tattoo Convention, May 31-June 2.
MONSANTO: Festival of the Crosses, through May 5.
FUNCHAL: Flower Festival, May 9-15.
ESTORIL: Estoril Jazz, Casino, May 10-12 and 17-19.
FÁTIMA: Pilgrimages, May 12-13.
MÉRTOLA: Islamic Festival, Arab dancers, musicians, artisans and chefs, May 16-19.
FUNCHAL: Madeira Islands Open, golf tournament, May 16-19.
ARMAMAR: Douro Valley Half Marathon, running through wine country, May 19.
SHETLAND ISLANDS: Shetland Folk Festival, through May 5.
OBAN: Highlands and Islands Music and Dance Festival, through May 5.
EDINBURG: TradFest, music, dance, storytelling and tradition, through May 6.
DUFFTOWN: Spirit of Speyside Whisky Festival, through May 6.
ISLAY: Festival of Music and Malt, May 24-June 1.
SANLÚCAR DE BARRAMEDA: Patio Festival, through May 5.
MADRID: Festimad, alternative rock festival, through May 5.
JEREZ LA FRONTERA: Feria del Caballo, Horse fair, May 6-12.
CÓRDOBA: Courtyards Festival, decorated inner gardens, May 8-19.
CÁCERES: WOMAD free international music festival, May 10-12.
CORDOBA: The Cordoba Fair, traditional fair at El Arenal, May 25-June 1.
SANLÚCAR DE BARRAMEDA: Manzanilla Festival, May 28-June 2.
GRANADA: Corpus Christi, religious procession, May 30.
LUCERNE: Tulip Show, Ebikon, through May 12.
LUCERNE: The Retro Festival, Rick Astley, Uriah Heep, others, May 9-11.
WINTERTHUR: Afro-Pfingsten Festival, African and world music, May 13-20.
ASCONA: Street Artists Festival, May 17-20.
BADEN: Blues Festival, May 21-25.
APPENZELL: A-Capella Festival, May 23-25.
CRISSIER and LAUSANNE: Blues Rules Crissier Tour, blues festival, May 30-31.
NEWPORT: Golf Live, May 9-12.
HAY-ON-WYE: Hay Festival, festival of ideas, May 23-June 2.