The site of a 19th century "dream city" that almost rivaled Chicago before being swallowed by the Indiana sand dunes.

An archival collection of over 2,200 case studies which includes human brain specimens and tumor specimens.

This abandoned boat sits on a nude beach, is shaped like a UFO, and is covered in graffiti.

Bizarre Cavern.

A desert ghost town—occupied for only 12 years—was once home to more than 500 silver mines.

A peaceful, unique botanical garden complete with waterfalls, mini islands, and swans.

This medieval village/restaurant perpetually celebrates the year 1376.

Buildings that dynamite couldn't bring down were abandoned because of bathroom issues.

California's own medieval Italian castle, authentic down to the 300-year-old iron maiden in the dungeon.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

One of the steepest streets in the United States makes an intriguing challenge for cyclists.

In which a local geological marvel becomes a quaint roadside attraction.

A railroad tunnel that, upon its completion, was considered one of the engineering marvels of the modern world.

The so-called "Statue of Liberty of Los Angeles" is on a one mutant mission to keep L.A. weird.

"The House That Love Built" is shying away from "The House That Ghosts Love."

Finale of "William Tell Overture" can be heard as drivers pass over grooves in the road.

This ultra-modern home clings to the slope of the Hollywood Hills on a precarious stilt.

This massive redwood tree has a hole in the base big enough to drive through.

A hidden beach at the end of a tunnel of mangrove trees.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

A gothic church spire sits atop this skyscraper, the tallest church in the world.

This replica of the Greek structure is in the heart of Nashville.

Eons old volcanic activity created one of the most stunning rock formations in the United States.

A sculptor's dream castle turned fantastical ruin.