The only structure left with direct ties to the Salem witchcraft trials of 1692.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

A church of bones, decorated with 40,000 human skeletons.

A snapshot of the city's fascinating voodoo culture.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

The absurd creation is a compulsory destination for selfies in Buffalo.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

The one-stop shop for all of your superhero (or evil arch-nemesis) needs.

A New York garbage depot holds a secret collection of weird and wonderful refuse.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

A crumbling hospital from the 1850s on Roosevelt Island.

A terrific purveyor of natural history objects and curios.