Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

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

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

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A 200-year-old bar in the historic French Quarter refuses to give up its place in history, nor its role in securing ours.

Resting place of Hollywood's immortals is also site of summer film screenings.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

A giant Troll lurks under one of Seattle's oldest bridges.

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

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

World's first "penitentiary," meant to be humane, drove men insane.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

A huge musical instrument played by the ocean.

An enormous, inside-out glass globe built in 1935.

This supermarket is suspended 25 feet above an interstate highway.

Dim sum, served in a grand old theater.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Dedicated to one of the darkest moments in Irish history, this memorial has faced its fair share of backlash.

This statue intended for children to enjoy became a minor political spat.