The first bridge observation tower in the U.S. offers one of the best views of Maine.

Contrary to what one might expect, ice forms inside this small cavern during the summer and melts during the winter.

A tiny one-room church built after one man's prayer for healing was answered.

Once the extravagant escape of the Ford family, this enigmatic ruin now stands as a haunting reminder of its former glory.

The menacing creature had a tremendous influence on the local culture before being exposed as a hoax.

An oddly poignant roadside attraction celebrating American folklore.

This massive roadside mascot was the first version of the giant to illustrate his butt.

A downtown park built on top of unclaimed graves.

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

On the Oregon coast there is a natural hole that seems to be draining the sea.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

The miraculous hydrant that saved the Mission District in 1906.

Members of Congress have traveled between the buildings on Capitol Hill for a century hidden from tourists, press, and storm clouds.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.

The smallest post office in the United States is no bigger than a broom closet.

This spiny beast guards an artist's village while vying for the title of largest lobster in the world.

"We Seceded Where Others Failed."

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

An 18th-century Spanish watchtower made entirely of seashell and concrete.

A monument celebrating the idea of reaching inaccessible places.

When this test site was abandoned, they didn't even bother to take the rocket with them.

A tribute to Ponce de Leon's supposed quest for eternal youth.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.