Austin’s nonprofit-run graffiti park where street art is meant to be painted over.

Home to the largest urban bat colony in North America, estimated at 1.5 million bats.

Locals dubbed it the "Owl Building" because of its bird-like appearance.

The first declared National Monument in the United States.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

Pulled from the rubble of one of the worst modern tragedies, a steel crossbeam became a symbol of hope for New Yorkers.

A popular European tradition makes its way to the states on one of America's most famous bridges.

Speak to a companion on the other side of the room loud and clear through this architectural anomaly.

An architect's childhood fantasy treehouse made real.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

For just a few bucks, this Iowa funicular will let you feel like an 1800s fat cat.

The world’s largest truck stop includes a barber shop, chiropractor, and a huge museum with antique trucks.

A place of great reverence for Trekkies everywhere, a hero's future birthplace.

Home with Gothic windows featured in a famous painting.

This zombie-themed restaurant stands out in the heart of corn country.

Piled high inside this warehouse and coffee shop are salvaged goods that span every corner of the globe.

Millions of dollars worth of sculpture decorate this Iowa city center.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

No one knows the origin of this small town’s unique name.

The Iowa state contender for largest pan in the world oddly only comes in second or so.