Elevated freight railway turned wildly successful urban park.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

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

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

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.

The little-known, 300-year history of the area includes former lives as a bustling tobacco port, parking lot, and industrial dump.

Washington's iconic carousel has a nice piece of Civil Rights history.

Perhaps the most scandalous statue of America's first president.

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

It was once the base for a series of domestic terror attacks.

The "lovely red Vega" of the legendary record-settling pilot.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

The walls of the iconic dome are hollow and have a secret stairway.

The site of the climactic scene from the classic horror film is now a historic landmark.

Seat of the Duke and Duchess of Devonshire for centuries.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

A gorge full of caverns where early humans lived alongside cave hyenas, giant mammoths and wooly rhinoceroses.

The largest oak in England is said to have been the hideout of Robin Hood and his Merry Men.

A collection of early 19th century trams set in a reconstructed period village.

The storied English village that pretended to be insane inspired NYC's nickname and the fictional namesake in the DC Comics universe.

A striking 500-year-old mansion provides an unexpectedly sublime home for live deer and a menagerie of exotic stuffed animals.

The ancestral home of beloved English poet Lord Byron has a bizarre history.

The oldest inn in England served brew to the crusaders.