The gigantic preserved heart of a champion racehorse.

Beach instrument turned bed and breakfast.

An island graveyard with spectacular views of the Caribbean.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

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

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

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

A metal menagerie fills the yard of this museum and gallery, the work of Montana artist Bill Ohrmann.

A museum dedicated to the history and art of staying clean.

A tunnel with windows, so you don't miss out on the impressive views.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

Oddly shaped rock formation, misassociated with a nearby utopian community.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

This off-the-beaten-path abandoned town is a relic of Montana's silver mining boom.

These giant metal horses graze on a hilltop near the Montana highway.

Mining caused an asbestos emergency in this small town.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

In a small Japanese garden off a busy Denver street, a memorial to a brave, principled politician.

A focal point of in Denver’s skyline for over a century, inspired by a Venetian basilica.

This sidewalk tribute honors Colorado's great culinary creation.

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.