Event· Trier
Trier Underworlds 'Trierer Unterwelten'
"Trierer Unterwelten" (Trier Underworlds) is a guided tour in Trier, Germany, that takes visitors through the hidden underground passages beneath the city, including Roman-era structures, vaulted cellars, and catacombs beneath the cathedral. It offers a fascinating look at Trier's 2,000-year history from beneath the surface.