The oldest alley in San Francisco is paved with a reminder of the city's original shoreline.

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

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

Decades' worth of lost and forgotten objects make up the collection of this tantalizingly odd little museum.

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

Wayne Newton's sprawling estate is now open for visitors to catch a glimpse of his "heart and soul."

Temporary Burning Man sculpture made of two 18-wheelers.

An enormous illuminated figure dances on the Las Vegas strip.

Las Vegas's very own 40-foot-tall fire-spewing praying mantis.

A giant open-air sculpture made of over 200 full-sized boats.

Fans of vintage Vegas, kitsch, and toy pony-based gambling now flock to a casino called The D.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

The so-called "Father of Las Vegas" had the city's first telephone installed in his office in 1907.

One of the world's tallest Ferris wheels takes visitors high above Las Vegas in a spinning party room.

The bullet-riddled wall from the St. Valentine's Day Massacre, bloodstains enhanced for your viewing pleasure.

A new kind of theme park for adults off the Las Vegas Strip.

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

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

Experience the glam side of air travel without leaving the ground at this speakeasy.

Enormous one time fiber mill now houses local artists and small businesses.

This elaborate tunnel is the first structure composed of cast concrete in the United States.

Twenty-three trees, each paired with a basalt stone, line a street in Chelsea, continuing an urban project started by German Fluxus artist Joseph Beuys.

Built just after the American Revolution, the oldest row house in New York City still stands in Chinatown.

Oldest surviving example of a Dutch saltbox frame house in America.