Gold Rush ship-turned-hotel buried underneath San Francisco's financial district.

Faceless white figures loom over the city from the rooftop.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

This concrete tangle of square pipes has stood as a proud thorn in the city's side since the '70s.

A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.

An vast warehouse of everyday treasures in Berkeley, CA.

A store that sells all manner of bones, insects, and animal curiosities.

Mural made of 100,000 pieces of hand blown glass, and until recently, the largest glass mural in the US.

North Central Florida's largest flea market and a weekend roadtripper's dream.

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

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Strange red rock formations that have been attributed to a higher power for hundreds of years.

The first declared National Monument in the United States.

The granddaddy of all tourist traps, built on ice water, jackalopes, and a giant dinosaur.

Monument to a forgotten NYC disaster that claimed the lives of 1,000.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

An Irish Memorial commemorating those who perished due to potato blight.

The palatial McDonald's that inspired Wesley Willis.

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

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.