cathedral
Here's What You Can Find Inside the Cologne Cathedral
A UNESCO World Heritage Site, Cologne Cathedral is home to a number of relics and treasures sacred to the Catholic faith
Urine Dilemma Threatens Ulm Minster-'The World's Tallest Church': Longest Problem Unsolved
The World's Talles Church, Ulm Minster, is threatened by urine through the weakening of its bases.
