Free public park and gardens filled with peacocks and peahens.

A mysterious and terrifying public art goblin seemingly meant to inspire local legend.

An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

Pyramid home to an obscure religious group that practices modern mummification.

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

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A museum dedicated to the alleged Roswell Incident.

The rusted remains of a victim of Hurricane Ike.

A sinkhole known simply as "The Hole."

A 220-foot deep watery drop-off, filled with marine life.

The famous boat that once ferried Bogart and Hepburn still floats in Key Largo after being abandoned for years.

Island ghost town detailing Flagler's folly in building the Overseas Railroad.

A community of collapsing homes more than a mile out from the Florida coast.

One-time winter retreats of prolific inventor Thomas Edison and his friend Henry Ford.

One of many gator theme parks, abandoned in the sugar fields of South Florida.

A circus legend leaves an unexpected endowment.

Like Mardi Gras, only everyone's a pirate.

A military museum and library dedicated to the citizen soldier.

This New England covered bridge is home to the tale of a jilted lover known to haunt the area.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.

These enduring murals depicting a distinctly Marxist tribute to capitalism could not even be defeated by McCarthyism.

This racially troublesome eatery thought a new coat of paint could erase its offensive connotations.