A collection of art from Bulgaria's time as a communist state.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

A fitting attraction for the corn capital of the world.

This inanimate goat created by the "welding nun" has been helping to clean up the city of Spokane for more than 40 years.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This historic hotel invented the chocolate brownie.

Ancient serpentine sacrifice holder that has stood the test of time.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

A marvel of Byzantine engineering under the streets of Istanbul.

This single room has survived the centuries with almost no deterioration.

This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

Northern Ireland's Brobdingnagian stepping stones.

The ancient tomb acts as a calendar that keeps perfect time.

One of Ireland's most infamous prisons for rebels including men, women and children.

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

The mummified heart of a saint lives on in this church—after a brief hiatus when it was stolen.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The modern birthplace of Irish freedom.

Ancient Egyptian wigs, South American feather headdresses, a bounty of anthropological artifacts in Oxford.