St. Peter's Cathedral (Trier)

St. Peter's Cathedral in Trier, Germany, is a remarkable example of Romanesque architecture, dating back to the 4th century. It is the oldest cathedral in Germany and serves as a significant religious site, believed to house important relics, including pieces of the True Cross. The cathedral showcases various architectural styles, reflecting its long history of expansions and renovations. Visitors can admire its impressive façade, intricate stained glass windows, and the iconic dome. As a UNESCO World Heritage Site, it is not only a place of worship but also an important cultural landmark that attracts tourists and historians alike.