An often overlooked ancient site in downtown Athens with substantial history (and nature).

Step inside an ancient beehive tomb built for a mysterious cult hero.

This beehive tomb built for royalty sat hidden for over 3,000 years.

This black sand beach was crafted from volcanic explosions including the historic Minoan eruption.

The world's biggest pet store.

Four-story slides send people whizzing through the math department at this Munich university.

This ancient statue of Dionysus lies unfinished and abandoned in one of Greece's oldest quarries.

The site where hundreds of Greeks were tortured by the Nazi secret police is now a cosmetics store.

This seaside sanctuary was once one of the most important religious sites for women in ancient Greece.

An ancient pagan site swirling with legends in the foothills of Franconian Switzerland.

Twisted trees shaped by coastal winds make this woodland look like something from a spooky story.

As lake waters recede, a German village reemerges after more than a hundred years.

A preserved Nazi labor camp now has a Holocaust museum on site and memorials to the thousands that died while imprisoned at the camp.

Learn about the sweet, storied legacy of beekeeping in ancient Greece.

According to legend, this cavern holds the passage that Persephone used to travel to and from the underworld.

This open air archeological site houses almost as much wildlife as it does classical religious artifacts.

This 13th-century monastery chiseled into the side of a mountain is equipped with a bridge that can be lifted to protect against raids.

This unique exhibit "Dialogue in the Dark" reverses roles as the visionless become guides and the sighted become ‘blind.’

Ample proof that watery ends make for well-preserved, millenia-old mummies.

This 200-meter-high waterfall marks the site of Achilles’s immortal baptism at the mouth of the River Styx.

Temple complex that once housed the famous statue of Nike.

One of the largest single-span stone-arch bridges in the Balkans looks like something straight out of a fairytale.

At one of Berlin’s oldest churches, visitors can place mosaic tiles to help restore a medieval mural.

This curious sculpture represents the perseverance needed to take to the skies.