No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

This sandstone mansion was the home of two of Oregon's most important pioneers.

The largest wooden building in the world now houses a fascinating collection of aircraft.

100-year-old shipwreck you can walk up to at low tide.

Home to the only outdoor municipal elevator in the United States.

A bike being "eaten" by a tree is the real Vashon legend behind popular children's book, "Red Ranger Came Calling."

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

Home of Howard Hughes' Spruce Goose.

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

A heavenly experience, right here on Terra Firma.

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

Limestone caves with spectacular showcase chambers.

A reproduction of earth's many biomes.

A spiritual vortex among the red rocks in Sedona.

A self-built castle made by a mysterious man.

A geological mystery on Camelback Mountain.

While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

The magic's in the hole!