Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

Banksy gives themself artistic license with this piece of London street art.

Part of a highway network meant to connect Miami to Montreal, this 10-mile stretch of road made from red bricks is still around 100 years later.

This road in the Great Smoky Mountains was supposed to assuage a displaced community, but ended up a $52 million dead end.

The only road through the heart of Glacier National Park.

This small road tunnel is the only place where you can cross beneath the Erie Canal.

Death road of Bolivia.

An underwater road considered a possible Atlantis location.

One man spent 10 years building a spectacular section of road because no one else would.

A community farm in the midst of the Brooklyn concrete.

The inventor of the Coney Island hot dog rests in a grand mausoleum in Brooklyn.

New York's oldest concrete structure is being preserved thanks to the gentrification of Whole Foods.

The longest continuous underwater road in North America was built at the insistence of Franklin Roosevelt.

This elaborate tunnel is the first structure composed of cast concrete in the United States.

This unusual subway stop was originally a real estate office.

This beautiful Brooklyn monument over a crypt memorializes a grim and largely unknown story from the American Revolution.

Two monstrous warehouses. One now holds priceless works of art, the other stands abandoned and dilapidated.

Once a dumping spot, now a park with a kayak launch.

One of the deadliest American air disasters is nearly forgotten in Brooklyn.

A strip of modern stores in historic buildings.

Residents of this Brooklyn neighborhood may be unaware their houses sit atop a buried trolley graveyard.

The site where Joe Gallo kept his guns, pet lion, and launched an all out mob war in 1960s Brooklyn.