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

This Brazilian palace island was once the site of the last grand ball before revolution.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

A devastating landslide accidentally created this tourist hotspot.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

Legend says this remote, “bottomless” lake was created by a curse.

A walkable map of the world, made from soil and stone by one man.

Wondrous stalactites house thousands of bats in these African caves.

Inspired by a dream, a hermit carved out a home in this sandstone bank to live a life of contemplation and prayer.

The ruins of a Roman fort lie in the shadows of an imposing medieval castle.

In Spain, the ruins of a Roman military camp sit along a flooded section of a river.

The last Viking king of Denmark is buried inside the crypt of this cathedral.

The interior of this Serbian royal family's mausoleum is covered with exquisite mosaics.

This Gothic church houses ornate royal tombs and a magnificent gilded altarpiece.

Beneath the impressive baroque cathedral that rises from the center of Berlin lies the largest collection of Prussian royals in the world.

Medieval Danse Macabre Fresco in Northern Brittany.

The precise origins of this pink sandstone temple are unknown.

High atop a Mexican rainforest mountain, this ancient pyramid once drew pilgrims countries away.

Standing proud atop a Turkish bluff, this Ottoman palace has retained its grandeur despite being abandoned for centuries.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

The site of the last royal wedding in Korea.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.