Mutant vegetables, transgenic mosquitos, and atomic rodents span the walls of this one-of-a-kind museum.

Secret US military film studio in the Hollywood Hills.

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

Suburban observatory was personal lab of the father of modern astrophysics.

This 1920s masterpiece of French Quarter architecture hides a secret tunnel used by Albert Einstein.

A carousel trades in its classic horses and calliope for endangered species, native flora and fauna, and a modern soundtrack.

The upstairs reading room is packed with millions of rare books, literary manuscripts, and historical treasures.

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

Whiskey lovers, this is your happy place.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

Most famous work of one of Frank Lloyd Wright's sons.

The programmatic glory of LA's giant whiskey barrel building has become an upscale reminder of the city's kitschy roadside past.

Art museum based around the collections accumulated over 58 years by one eccentric thrift store owner.

The beautiful 1920 Pantages Theatre remains hidden just underneath the LA Downtown Jewelry Exchange.

A spiritual retreat in the heart of Los Angeles offers stunning gardens and a labyrinth to lose yourself in.

Hidden above a drug store on a nondescript corner of Lincoln Heights is a private clubhouse for intrepid explorers.

Beautiful Victorian buildings from L.A.'s forgotten architectural past.

One of the world's longest murals depicts the history of diversity in Los Angeles.

Must form and function forever remain at odds? Not if the Florida Department of Transportation has its way.

Controversially claiming the title of world's biggest bass drum, UT's Big Bertha was once made radioactive by the Manhattan Project.

Where scientists keep miles of very valuable ice from Antarctica and Greenland from melting.

It's easy to forget what century it is as you wander this rustic homestead.

Colorful umbrella-covered trees in Singapore's Little India look straight out of Dr. Seuss.

A high-octane shrine to the greatest Texans who ever lived.