The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The national park was once a plantation estate.

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

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

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

This church built atop a gas station promises to "equip you for the next stage in your life’s journey."

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.

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

Bad farming practices caused this unnatural natural wonder.

The private island of Yale's elite Skull & Bones society is kind of a dump.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

The purported world's shortest international bridge connects a homeowner in Canada to his backyard in New York.

This tiny little island has, as the name says, just enough room for its single house.

A castle built for love, and abandoned due to heartbreak.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

No one knows for sure why this town's dead refuse to rot.

This elegant Colombian fortress was one of the torture headquarters for the Spanish Inquisition.

Cathedral carved out of salt, located a mile below the earth's surface.

This picturesque mansion has gone from opulent ruin to nature museum.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

A contemporary fresco movement illustrates the region's rich history.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

A massive Montreal stadium that has seen nothing but trouble since its inception.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.