The beautiful tunnel that ran from the lobby to Penn Station is still hidden underneath 34th Street.

"Dark Sky Park" is heaven on Earth for astronomers, one of the rare U.S. locations with no artificial light pollution.

The best Tiki bar in Las Vegas.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

This permanent exhibition celebrates the finest of our heartless automatons both real and fictional.

Travelers exchange letters with woodland creatures at this mini post office.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

These aggressively sustainable art homes look like something out of 1970's science fiction.

Nestled in the heart of San Francisco’s bustling Financial District stands a unique homage to the Mayan and Beaux Arts.

Costumed elves and mountain bikers co-exist peacefully at this abandoned Christmas-themed adventure park.

An inconspicuous footbridge beloved by San Diego locals.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

Stay in a room with a view... of the bottom of the ocean.

The randomness of this wall of lava lamps helps encrypt up to 10 percent of the internet.

An uber-secure, windowless tower of doom in the center of Manhattan is an NSA spyscraper.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

The highest bridge in America was built for an almost unnervingly small amount of money.

In a city filled with Frank Gehry buildings, one stands out as one of the architect's weirder works.

A hollow cement depiction of time's inexorable effect on the human body.

The subtle science of a master molecular gastronomist.

A 300-ship graveyard, with a few still visible at low tide.

The longest living non-clonal organisms on Earth.