Lucha Libre (Mexican Wrestling) themed taco shop.

One of the largest trees of its kind in California.

A hidden courtyard houses early 20th-century plaster masterpieces.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

A sculpture of the famous photograph stands on San Diego's "Greatest Generation Walk."

One of the few remaining carousels built by master amusement park carver Charles I.D. Looff.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

Before he was America’s most famous preservationist, John Muir was an ingenious mechanical inventor.

Hidden away in the city of Madison, Wisconsin is a nearly forgotten home that Frank Lloyd Wright built for a childhood friend.

The only thing these street signs will help you navigate is your imagination.

Prayers and messages of hope decorate the ceramic tiles of this pavilion.

Prolific outsider artist Sid Boyum's concrete sculptures add whimsy to Madison's Schenk-Atwood neighborhood.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

This stately building in Alexandria, Virginia was built by Freemasons to honor one of their most famous members.

The narrowest house in America is seven feet of pure spite.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

A massive, majestic mammal watches over pedestrians from his perch atop a former B.P.O.E. lodge.

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.