A trash dump made beautiful by nature's power.

The old Niles Canyon Aqueduct in the San Francisco Bay Area is a bemusing and secret trail through nature for wayward travelers.

The rocks in this arid basin leave trails of movement behind them.

An artsy hidden staircase leads to breathtaking views of San Francisco.

World's largest collection of serial killer artwork and other macabre exhibits.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

A college in rural Kansas founded to prepare the country for an impending World War III.

The first home of the doomed aviatrix Amelia Earhart.

This Italianate Villa-style castle is pretty to look at, just keep off the private property.

During the 1990's nearly all of the world's LSD is thought to have come from the operators of the lab once located in this missile silo.

A house turned museum is the real-life "home" of the fictional main character of The Wizard of Oz.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

Massive still life just off the highway in Kansas.

Marking the spot where a conquistador gave up his search for the fabled Seven Cities of Gold.

A wonderful collection of all things Oz is nestled in the heart of Kansas.

Home to Hollywood history and a very special salt crystal.

The man who was president for only one day and spent most of it asleep.

This 40-foot fowl marks the so-called "wild goose capital of the world."

The fastest mail service in the west is tracked and memorialized along this 1,400 mile trail.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

The house where the famed outlaw was shot by a dirty coward is now a museum to the criminal's legacy.

This abandoned prison castle has become an imposing gallery of graffiti art.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.