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

Look closely and you’ll notice that the color changes a third of the way up the tower.

Home to items never before seen by the public.

Daredevil repair workers can worm their way out the access hatch, loop ropes over the apex and rappel down the monument.

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

An overlooked memorial honoring the local Washington residents who died in World War I.

The hidden offices underneath Memorial Bridge have been locked up since 1976.

The controversial urban planner who designed Washington, D.C., was buried in Maryland, and can presently be found in Virginia.

A replica of the first public theater built in California.

I Street Bridge is the heaviest swinging center bridge in the United States.

The California capital city once stood 10 feet lower than it does today.

Furniture tries to escape an abandoned building in San Francisco.

A winding path built in secret on the edge of the continent.

The avant-garde design was able to bypass strict Soviet regulations on architecture.

This stoic bronze soldier stands as a symbol of Russian sacrifice or Soviet oppression, or maybe both.

A secluded art gallery hidden within the cellars beneath Tallinn’s medieval monastery.

The largest guitar store in the world has been visited by some of music's all-time greats passing through upstate New York.

One of the largest festivals of flowers in North America takes place, appropriately, in the Flower City.

A beautiful final resting place with some surprising residents.

Rochester's signature culinary delicacy.

An antique cemetery in New York, this land is home to any number of famed corpses.

The home, museum, and death site of Kodak's influential founder.

An oasis of shade and color amidst the bustle of the old city.

Known as the "Valley of the Moon," this Jordanian wadi is one of the most amazing desertscapes on Earth.