These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

This mysterious and unique painting is filled with symbolism.

This historic building displays the remains of a victim of the devastating 14th-century plague.

The ritual has been performed uninterrupted for nearly 700 years.

A measuring mishap led to these artificial stone ladies losing their stomachs.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

A naturally mummified 2,000-year-old man.

Scattered throughout London are ancient remnants of the city's former bounding wall.

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

Remnants of a Victorian garden feature sitting in public woodland.

One part local history, 99 parts gruesome haunted house.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This mural painted by Keith Haring was done without payment as a gift to entertain the children at the Hôpital Necker.

Beggars were miraculously "cured" of their fake ailments when they returned home to this 17th century Paris slum each night.

Statue of death tucked in the University of Medicine courtyard.

This historic graveyard monument is dedicated to a tragic victim of witch trial hysteria.

Instruments, apparatus, and rare books all relating to chemistry and its related sciences.

The hidden jewel of Disneyland: a members only playground for the Disney elite.

Located just behind a quiet residential neighborhood, this is ground zero for the Salem witchcraft hysteria of 1692.

A historic covered bridge is but one example of an oddly prevalent American urban legend.

From Japan to Italy, this California park explores the world's cultures through their gardens.