An homage to everyone's favorite prehistoric cartoon family.

Step inside Lucy, the world's largest "elephant."

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

An encyclopedic collection of mammal penises.

The national park was once a plantation estate.

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

A former major munitions plant that has been converted into a sprawling art space.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

The massive machine creates cracking displays of indoor lightning.

Most-visited and most-photographed slot canyon in the American Southwest.

One of the oldest living oak trees in the Southeast.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

Three columns of volcanic rock shoot out of the ocean.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

This extravagant Art Nouveau rest stop features a million-dollar view of the Columbia River.

The only road through the heart of Glacier National Park.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

A museum dedicated to exhibiting remarkable outsider art.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

Few other hotels can rival the grandeur of the Castle in the Rockies.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.