This now-defunct synthetic fuel plant was once a major cog in the Nazi war machine.

In the middle of a barren moorland, the remnants of a lost British Space Age stand like a 20th-century Stonehenge.

This Copper beech tree nestled on a nature reserve is host to a bevy of autographs from Irish literary icons.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

The illuminated falls are a gem in North Cascades National Park.

In a time before lifeguards, this house was a sanctuary for the shipwrecked.

One of the only places where Earth’s mantle lies above water.

The oldest family-run restaurant in the United States is a living museum of New Orleans dining history.

You must take the A train... to the last active cemetery in Manhattan.

Inside this casino, visitors are treated to slot machines and a rare German Christmas pyramid.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

Take Soviet nostalgia to new heights by toasting the first man in space over a full spread of Belarusian and Soviet fare.

These artifacts were discovered during the construction of the airport, with some dating back to the Neolithic period.

Once home to over 8,000 exiled Hawaiians suffering from Hansen's Disease.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

This legendary urban waterfall creates a dazzling display of rainbows.

Try your hand at old-fashioned coffee growing at this museum devoted to one of the world's most coveted beans.

This black shoreline is made up of exploded lava particles.

A beach made of semi-precious green sand on the Big Island of Hawai'i.

The southernmost point in the United States is a beautiful place to look at but a deadly place to wade in.

Watch the newest land on the planet form before your eyes.

At this cozy bar tucked down a hidden Galway backroad, Guinness makes the Gaelic come out.

Near Belgrade, an ancient-looking sarcophagus serves as a World War I monument.

Visitors to the National Museum of Nepal can moon over a set of well-traveled flags.