A historic freight system that found the true gold rush is in tourism.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

"Only the devil could play golf here."

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

The United States Capitol's former columns still stand.

Who needs fancy modern water slides when this giant North Carolina rock works just as well?

At 207 feet, one of the world's longest continuous escalators.

Home to items never before seen by the public.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

A geological mystery on Camelback Mountain.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Come for the flowers, stay for the bats!

A former waterfront market is now in the center of town due to some interesting Boston engineering.

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

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

Golden Gate Park's historic collection of plants.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

"Girl in a Wetsuit" is what happens when a sculptor has to find a way around a 100 year old copyright.

One of the best beaches in the entire world.

Relics of Australia's convict past, and a modern scene of unimaginable horror.

A youth-centric science center hides an industrial triumph.

A rotting tree in the middle of Seattle doubles as an elaborately-controlled art piece.