Petersberg Citadel

The Petersberg Citadel (Zitadelle Petersberg) in Erfurt is one of the largest and best-preserved Baroque city fortresses in Europe. Rising directly above Cathedral Square, its bastions offer the classic view of Erfurt Cathedral and St. Severus' Church. The vast plateau is free to explore, while a network of secret listening tunnels lies hidden inside the walls. For anyone visiting the capital of Thuringia, climbing the Petersberg is a must.

History of the citadel

A powerful Benedictine monastery once stood on the hill, and its Romanesque St. Peter's Church dates from 1103 to 1147. In 1665, Johann Philipp von Schönborn, Archbishop-Elector of Mainz, began building a fortress here to control the city of Erfurt, then ruled by Mainz. Prussia took over in 1802, and after the Battle of Jena-Auerstedt in 1806, French troops held the citadel until 1814. It remained a military site into the East German era. Since 1990, the complex has been extensively restored. The core covers about 12 hectares, with eight bastions and roughly 2 kilometers of walls.

What to see

• Peterstor gate and Commandant's House: cross the arched bridge into the fortress; the visitor center is inside.
• History exhibition: an interactive show covering monks, soldiers, and the GDR period, taking about an hour.
• The listening tunnels (Horchgänge): narrow passages where soldiers listened for enemies digging beneath the walls.
• St. Peter's Church and the Defensionskaserne: the Romanesque church and a massive 19th-century barracks.
• The viewpoints: sweeping views over Cathedral Square and the old town's rooftops.

Tickets and opening hours

The citadel grounds are free and open year-round. As of October 2026, the visitor center is open daily 10 a.m.–6 p.m. The exhibition (same hours, last entry 5 p.m.) costs €8 for adults and €4 reduced. Guided tours including the tunnels run daily at 11 a.m. and 2 p.m. from April to December (fewer slots in winter), last one hour, and cost €9; public tours are in German, with other languages available for groups. Bring a jacket, as it is cool underground.

How to get to the Petersberg Citadel

Erfurt is a major ICE hub in central Germany, about 1 hour 45 minutes from Berlin, roughly two hours from Frankfurt, and around 45 minutes from Leipzig. From Erfurt Hauptbahnhof, take tram 3 or 6 to Domplatz Nord, then walk up the stairs, the 600-meter step-free panoramic path, or ride the panoramic elevator (daily 9 a.m.–9 p.m.). Drivers can use the Domplatz parking garage below the hill. Prices are in euros (EUR).

Is it worth visiting?

Yes. The views alone justify the climb, entry to the grounds is free, and the tunnel tour adds an adventurous twist. Combine it with Erfurt's UNESCO-listed medieval Jewish heritage and the Krämerbrücke for a rewarding day trip.

Nearby

• Erfurt Cathedral and St. Severus' Church: right below on Domplatz.
• Krämerbrücke: a medieval bridge lined with inhabited houses.
• Old Synagogue: part of a UNESCO World Heritage Site since 2023.