An immersive art experience built by local arts collaborative, Factory Obscura, in the building formerly known as The Womb, a psychedelic arts center founded by the frontman of the Flaming Lips.

Made of giant chains and hung with shackles, this iron cross honors those unknowns who perished under American slavery.

This red-eyed chrome beast pays homage to the popular modern myth of West Virginia's insectoid monster.

A whimsical, but often overlooked clock in Park Avenue.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

Recognized the world over as the home of the McCallisters in the 1990 movie "Home Alone."

Unrepaired walls from a 1920 anarchist bomb attack.

Portlandia is the second-largest copper repoussé statue in the United States.

This ancient octopus-like tree was saved from destruction thanks to shady reporting.

The miraculous hydrant that saved the Mission District in 1906.

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

An artificial crater field that trained astronauts for lunar exploration.

A little piece of Paris in the sultry south of the U.S.

Giant origami sculptures tucked into desert scenery beckon passers-by to explore further.

This small primate research island is teeming with playing, fighting wild monkeys.

America's first public mental health facility.

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

This black shoreline is made up of exploded lava particles.

From the sky, a kaleidoscope of color brightens the grey landscape of the San Francisco Bay.

Make your reservation to have coffee with some kitties.

An ultra-modern vista that has been featured in so many films the house is a celebrity in its own right.

An artist's cute bronze subway sculptures belie his violent artistic past.

All of Chicago's wood-paved streets are long gone but two alleys remain.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.