Thousands of artifacts relating to human sexuality, including the world's largest sex bike.

These banned cigarette vending machines now sell little pieces of pocket-sized art.

Formerly the world's largest, this Willy Wonka-esque contraption runs 24/7.

A collection of haunted objects and macabre oddities under one roof.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."

On any given day this sprawling market houses literally tons of government-regulated gold, gems, and precious metals.

This artificial archipelago was supposed to resemble a map of the world.

Billed as the "largest natural flower garden in the world" this Middle Eastern show field has little competition at 45 million flowers.

This indoor ski resort has a mountain contained inside a mall.

Paths are maintained, but trees have taken over plots.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

Beloved bar home to musicians of all eras and reputations.

At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.

A hollow cement depiction of time's inexorable effect on the human body.

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

A Bibliophile's Dream.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

This shop for all your super spy needs hides an educational secret.

Bar full of oddities, specimens, artifacts and homages to the great dime museums of the past.

America's Most Wanted's set resides in this tribute to the history of crime and punishment.