A self-built castle made by a mysterious man.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The Jewish section of the famous Boothill Graveyard was abandoned for nearly 100 years.

The shop's owner has spent decades in the desert wearing nothing but a strategically placed sock.

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

These pretty kitties killed and ate as many as 135 railway workers.

The palatial McDonald's that inspired Wesley Willis.

Fragments of architectural wonders from around the globe are embedded in the newspaper building's walls.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

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

Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

A mysterious stone embedded at the base of a historic Boston building.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

This massive tea kettle was once a promotional stunt for the Oriental Teashop.

The center of the only hemisphere that awards visitors with a commemorative coin.

This botanical garden outside Chicago boasts an array of more than 300 varieties of lilacs.

Museum dedicated to the art of cutting and polishing stones.

An ivy-covered arch bridge dedicated to Tejano music singer and legend Rosita Fernandez.

The quirky gift from West Berlin for the 1968 World's Fair still stands in Hemisfair Park.

This hot dog-shaped diner has moved all around Colorado, never been to New York.

Travel through the wholesome amusements of yesteryear at this charming miniature village.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).