A pre-war mansion that survived the modernization of Athens.

Where commuters walk through remnants of an ancient Greek necropolis.

View the ancient remains of buildings and the ancient "River of Hades" before hopping on a train.

This church was constructed on the site where St. Philip the Apostle preached to the ancient Athenians.

The second oldest surviving house in Athens was owned by an Irish General.

These ancient ruins hide in plain sight next to a dessert shop.

A Byzantine church containing the holy remnants of three saints sits atop the site of an ancient temple.

This building displays the scars of the “Dekemvriana,” a dark time in modern Greek history.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

Enjoy the cutest cafe experience outdoors.

A unique shopping and dining park created from old shipping containers and filled with local businesses.

The drama of nature in full effect in this Nevada State Park.

A homage to the King at the hotel where he revived his career.

This vintage animatronics show is the Vegas version of a walk through the woods.

Louis Sullivan’s dark, swirling cast-iron designs envelop a popular department store in this Chicago landmark.

A historic 1929 art-house cinema that features independent, classic, cult, and foreign films in an atmospheric setting.

In 2004, a Dave Matthews Band tour bus dumped 800 pounds of waste off a bridge and onto an unsuspecting tour boat below.

World's second largest particle accelerator, where nature reveals its secrets.

Former bath house turns gastropub.

The best Tiki bar in Las Vegas.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.