Fittingly, America's museum of architecture is itself a magnificently designed old building.

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

One of the most influential presidents in U.S. history wanted only this plain, elegant monument as his lasting memorial.

Once America's tallest structure, now a Baltimore landmark.

This funicular railway rumbles along for a mile up the nearly vertical face of Chattanooga’s Lookout Mountain.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

A bizarre roadside attraction and the first instance of miniature golf in the world.

Live long and prosper in Tennessee.

This historic train station has been converted to a locomotive themed hotel.

This museum dedicated to an oft-overlooked support industry features a surprisingly moving brass diorama of a man being saved from a sinking car.

Once decrepit and slated for demolition, now one of the longest pedestrian bridges in the world.

One person’s lost luggage is another person’s treasure.

For 150 years one family has been producing the iconic hot sauce on a bayou island made of salt.

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

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

This elaborate towering structure was once famed for its revolutionary height.

Golden and naked, the figure that was once the highest point in New York is all that remains of the second Madison Square Garden.

The final resting place of many of New Jersey's most famous residents, including U.S. history's most in-vogue antagonist, Aaron Burr.

Yo, Adrian!

A museum dedicated to the history and exploration of both popular music and science fiction.

Stroll through a wonderland of stupendous moss-covered trees.

The world's longest known cave system.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.