This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

360° views of the city plus five floors of optical illusions and hands-on science.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

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

These barriers stand as stark reminders of Northern Ireland's troubled past.

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

Scores of vintage street lamps shine along L.A.’s Miracle Mile.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

San Francisco's newly reopened hands-on science museum.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

An underground city of salt.

The ship built to ferry passengers and goods to the doomed Titanic is now the last remaining White Star Line vessel.

A museum marks and documents the site of the Titanic's launch.

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

A favorite Paris bar for U.S. expats, including Gershwin, Hemingway, and James Bond.

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.

This amazingly preserved Gold Rush town is a historian's dream.

The most famous location in China was home to whole dynasties worth of imperial rulers.

A typical "Old South" manor, once owned by author Anne Rice, served as the setting for several of her witchcraft sagas.