Zitadelle Petersberg is just one of the places to see in Erfurt, so why not enjoy the other things to explore during your travels? Amble around the area's gardens or experience its theatre scene.
After visiting St. Severi Church, make a plan to see the other sights and activities in Erfurt. Stroll along the riverfront or visit the monuments while you're in the area.
You can take time to visit Bad Langensalza Thermal Baths during your travels to Bad Langensalza. Make some time to visit the spas while you're in the area.