The Cathedral of Trier is the oldest cathedral in Germany. Originally, it was built on a Roman site that broke ground in the late third century. The most interesting thing about the Cathedral of Trier are its relics. It holds one of the Holy Nails that was said to hold Jesus to the cross when he was crucified, but that’s not the most remarkable relic.
The church also has an artifact known as the Seamless Robe of Jesus. This relic is said to be the robe Jesus wore shortly before his crucifixion. It is rarely available for public viewing, however, and the last time it was displayed was back in 2012.