One of the few remaining relics of the meatpacking hub that made Chicago the "hog butcher to the world."

This circus town museum recognizes the outstanding clowns of history.

This unique zoo is the only place in the world where you can see all 15 species of crane.

The castle still holds traces of the abandoned Roman fort it was built atop.

A quiet, semi-secret square with statues of Mahatma Gandhi, Virginia Woolf, and a conscientious objectors stone.

One of the oldest theaters in Australia, it's also said to be haunted by a performer who died on stage.

So many migrating birds roost on the bridge, it has a special summer speed limit.

England’s ancient oak tree has such an impressive girth, people have been hosting parties within the hollow trunk for centuries.

A monument to the thrice mayor of London who according to lore made his fortune by selling his rat-chasing cat.

A full-scale replica of a 1774 colonial settlement in Kentucky.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

A historic beacon built in the aftermath of the worst maritime disaster on the Great Lakes.

A statue honoring 44 continuous years of greeting passing ships.

This kitschy tavern is also home to rare early editions of "Treasure Island."

Every birth, death, and marriage is recorded in these color-coded leather-bound books.

What looks like a normal building is really a hollow facade hiding a subway vent.

The tomb of history's greatest potato promoter is surrounded by tubers.

A half-size replica of the World Trade Center towers above Tulsa.

The history of whiskey and all of its boozy glory, from Colonial days to modern American cocktail culture.

Originally built for London’s cab drivers, this bright green hut now serves anyone a hot drink or meal.

One of the best examples of Art Deco architecture in the United States.

Follow the original medieval paths that wind through this intriguing section of the city.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.