In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

Hear the quietest sound from across the dome.

An unusual round church in London with a Templar past.

Northern Ireland's Brobdingnagian stepping stones.

Inside a former cabaret, seven floors of erotic art.

The curious underground history of keeping Paris clean.

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

A bypass decorated with large wooden troll carvings.

Less a museum than a bizarre fantasy world created by artists and engineers.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

The history of funerals and funerary customs.