This creepy crypt under a church in Rome has got two names: Our Lady of the Conception of the Capuchins and Santa Maria della Concezione. It was designed by Antonio Casoni. The crypt is decorated with skeletal remains that once belonged to 4,000 friars and were collected between 1528 and 1870. Now these human bones are arranged in ornaments. This Capuchin Crypt is a well-known ossuary that attracts tourists from all over the world.