This NASA test station is home to some of the world’s largest and most powerful space environment simulation facilities.

One kilometer of thick brass rod laid out before your eyes.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

Empty, but not abandoned, this cavernous Brooklyn loading dock was once considered the largest individual building in the world.

You can still ride this 100-year-old work of art in Brooklyn's largest public park.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

Tucked away amidst some of the most famous addresses in the world is New York’s only fraction of a street.

Once forgotten, this strip of sand was a rare beachside haven for Black Americans in Atlantic City.

An enchanting tunnel of cypress trees leads to an old morse code station still used today.

A treasure hunter's tiny bar, harboring celebrities since 1959.

Collective dedicated to restoring steam engines.

The overgrown ruins of a once thriving World War I-era copper mine.

Four hundred granite steps were built into this massive rock by the National Park Service.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

Visible below the waves are memorials to the city's Gold Rush dead.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

Half-eaten food on display at an English café.

An alley covered with 20 years of bubble gum.

This painted wooden sculpture depicts the characters of a popular Devon folk song.

These "bridges" help confused bats cross the road.

One of the highest Roman forts in Britain is set amid dramatic scenery on a notoriously difficult road.