Local lore says two enemy dragons live within these breathtaking mountain lakes.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

An abandoned monastery sits on a far-off island in the Adriatic Sea.

Longest fortress system anywhere in Europe.

Dive for drinks at Croatia's first and only underwater winery.

An ethereal glowing blue ocean cave in Croatia.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

A well preserved medieval fortress in Vojvodina.

Festival of Perpetual Life and Rebirth.

The majority of the highest mountain in Poland is actually located in a different country.

An industrial site turned into Hungary's most cherished natural wonder.

A rare kind of blue bear can be found chiefly in the national park that shares their name.

The world's largest and most outstanding marl lake regularly changes color.

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

The culture that built these Tanzanian ruins displayed advanced knowledge of irrigation technology before mysteriously disappearing.

About as hidden as can be, this specialty coffee shop is wedged between multi-story buildings at the end of a dark, skinny alleyway in Seoul.

The biggest solar telescope in the world helps reveal the secrets of our sun.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

Village of slate houses, built on a white marble outcrop.

A surprising number of shipwrecks visible just off the Somaliland coast.

See massive fossils that are over 200 million years old in northeastern Arizona.

Eons ago, a rushing lava river formed this pristine passage through solid rock.