On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

A spiritual vortex among the red rocks in Sedona.

A bit of retro transportation flair preserved in the world's largest department store.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

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

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

Outsider art meets paleontology at this roadside reptile repository.

See massive fossils that are over 200 million years old in northeastern Arizona.

Giant busts of 42 U.S. presidents are sitting in a field in Virginia.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A sacred site for Native Americans surveyed by George Washington and owned by both King George III and Thomas Jefferson.

A self-built castle made by a mysterious man.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

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

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A beautiful geyser under environmental threat.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A semi-scholarly approach to sex.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Tucked in the back of this amazing antique store is an important piece of medical history.

One of the world’s most colorful cemeteries, where each pigment is symbolic.

Holy Grotto of Montserrat Monastery holds one of Europe's mysterious black Madonnas.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.