A little marble compass above George Washington's (empty) tomb in the Capitol marks where D.C.'s four quadrants intersect.

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

Scenic mount trashmore, Virginia Beach's most curious waterfront still has a couple of secrets.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

The record holder for the world’s largest peach.

The fifth tallest statue in the United States is a shirtless monument to the oil worker.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

This iron and wood Civil War city-ship was the first vessel to be sunk by an electrically detonated torpedo.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

See massive fossils that are over 200 million years old in northeastern Arizona.

Lady Liberty's first beacon of enlightenment is now displayed in a museum near the statue.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Avoid gangster interaction while window-shopping.

Once the tallest building in the world and the site of "the highest dinner ever held in New York" this building now holds the most expensive penthouse in the city.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

A starship has landed in Texas, a welcome break for weary travelers from a drab stretch of I-35.

This big empty pig is a nostalgic throwback to mid-20th-century Texas barbecue.

The biggest drug trafficking passage between Mexico and the U.S.

Legend has it the commander of the defenders drew a fateful line in the dirt with his sword just before the final battle.

Two small markers remember the Alamo's feline protectors.