A gorgeous garden oasis with winding paths, stone bridges, and a troubling history.

A luxuriant botanical garden below sea level.

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

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

The remains of a ruined mansion memorialize the 1906 earthquake.

Storyville was New Orleans' historic red light district and hotbed of jazz music, sometimes referred to simply as "The District."

This painted blacktop brings the classic arcade game to life.

The largest permanent Monopoly board makes one of the longest games even bigger.

The Magical World of George Phar Legler.

The first park built over a freeway is a brutalist masterwork.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

In this century-old literary safehouse, print is alive and well.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

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

An oddities shop that dabbles in the deathly and beautiful.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

The site where Poe “in great distress, and ... in need of immediate assistance” likely died.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

The remains of an abandoned dinosaur theme park litter the woods just off the highway.

Bad farming practices caused this unnatural natural wonder.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

These aggressively sustainable art homes look like something out of 1970's science fiction.

Even Henry David Thoreau found this glacial pothole irresistible.