A metal structure built on top of reconstructed ruins of Emperor Frederick I’s Imperial Palace is meant to give visitors an idea of how large the original building was. There’s am English tour of the site Saturday, Aug. 3, 2024. (Phillip Walter Wellman/Stars and Stripes)

Get a close-up look at Kaiserslautern history and maybe even see an ancient skeleton Saturday during an English-guided tour of the city’s underground tunnels. The tour begins in the Palatine Hall of the former Renaissance castle and continues through the tunnels, which span about 80 yards and pass through several rooms. The tour meeting point is at Fruchthallstrasse 14 in downtown Kaiserslautern at 11:15 a.m. and lasts about an hour and a half. Registration is required via email or at + 49 631 365 4019.

A medieval market with knight and Viking camps runs Friday through Sunday on the grounds of the Freisen wild park, about 10 miles south of Baumholder. Jugglers, dancers and musicians will perform throughout the weekend. There will be craftmanship demonstrations, goods for sale, as well as food and beverages with a Middle Ages flair on hand. The market takes place on Friday from 4 p.m. until 11 p.m.; on Saturday, from 10 a.m. until midnight, and on Sunday, from 11 a.m. to 7 p.m. Parking is available at the game park.

Cycle around the Palatinate Uplands with refreshment stations along the way while participating in Pfälzer Bergland’s family bike day on Sunday. From 11 a.m. to 6 p.m., the picturesque region between Lautertal and Odenbachtal will have food, drinks, music and more along the cycle route.