This rustic old building is said to be the most photographed barn in America.

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

An architect's childhood fantasy treehouse made real.

Native Americans built this circle of stones, which was used to predict astronomical events.

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

One man's ambition created this psychedelic log home.

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

A beautiful geyser under environmental threat.

The first declared National Monument in the United States.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

A beautiful maze marks where three countries meet.

This unusual elevator doesn’t stop or slow down.

Once the foundation for a mansion, these ruins now offer amazing panoramic coastal views.

These moss-covered medieval ruins tower atop the smallest of Ireland's Aran Islands.

The skeleton of a whale that beached itself in this Irish town is now on display in their public park.

A proud bronze billy stands as an eternal symbol of Ireland's oldest festival, where a goat is made king.

The severed head of a 17th-century Irish martyr lies within an intricate golden shrine.

A hugely vast Irish landscape of barren rock that stretches for miles.

A stunning Victorian abbey and walled garden on a lakefront.

Traveling this mountain pass reveals quaint stone buildings, stunning Irish scenery, and a bridge said to grant wishes.

An unusual manor of stunning beauty, born out of a crippling disease.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.