Geothermal waterfalls in Tuscany.

A striking symbol of the Bulgarian capital.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

This massive underground salt mine now holds a sci-fi theme park in its depths.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

People have been living in the cave houses on this Italian hillside since the Neolithic era.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

A striking 12th-century-style castle built on the edge of a cliff.

The fairy tale castle of the "fairy-tale king."

A copy of the Statue of Liberty greets visitors to the birthplace of Auguste Bartholdi.

Monasteries on rock pillars, once accessible only by frayed ropes.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

God's Saharan sandbox of wrath.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

A fortified city, home to a remaining population of five families

It took 40 years to build this Eden-like garden in Marrakech, later restored by Yves Saint-Laurent.

Hundreds of stone stairs and a winding medieval bridge connect this haunting Spanish island to the mainland.

This line of 12 tower mills described in the story of Don Quixote is among the most iconic landscapes in Spain.

One of the most important Celtic-Roman archaeological sites in Spain.

This magnificent castle grew from a small Moorish fortress, and reportedly inspired two iconic Disney castles.