A building so large that it has its own weather.

The Old Courthouse takes visitors on a captivating trip through St. Louis' timeline.

"X" marks the spot of an echo chamber in the middle of a plaza.

Portlandia is the second-largest copper repoussé statue in the United States.

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

A massive sea stack famous for its appearance in The Goonies.

An extraordinary mixture of natural beauty and man-made phenomena.

Despite a legend that says this highest peak in Oregon was climbed in high heels scores of people have died on its slopes.

An octet of classic chrome trailers speared into the ground act as a tribute to the silver bullets of the open road.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

One of many gator theme parks, abandoned in the sugar fields of South Florida.

Japanese gardens dedicated to the Japanese farmer that refused to throw in the trowel.

Former villa and estate of James Deering developed to preserve native tropical forests.

Where monkeys run wild and the humans are caged.

A monument celebrating the idea of reaching inaccessible places.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

Like Mardi Gras, only everyone's a pirate.

Electrical pylon in the shape of Disney's beloved mouse.

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.

The magic's in the hole!

A beautiful 62-acre Catholic shrine and botanical garden.

The world's smallest park was dedicated in 1948 as the only colony for leprechauns west of Ireland.

I-95's Tijuana-style celebration of kitsch at the Carolina border.