Sedlec Ossuary (Church of Bones)
Kutna Hora, Czech Republic
Sedlec Ossuary likely has the most bizarre interior designs you will ever see, with coats of arms and altars made entirely out of bones. The best, though, is a chandelier comprised of skulls and at least one bone from every part of the body. Head, shoulders, knees, and… sorry.
Siriraj Medical Museum
This museum is a valuable learning tool for Thai medical students and professionals, but that doesn’t make it any less creepy for the rest of us. It features everything from preserved babies born with physical defects to the mummified remains of serial killers, so planning a big lunch after visiting is not a good idea.