A sculptor's dream castle turned fantastical ruin.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

A small, but award-winning beach known for its literally spotless reputation.

An extraordinary natural landscape of mountains, waterfalls, and rocky cliffs riddled with tunnels.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

A towering work of stone and philosophy that was constructed using ancient Hindu science.

An authentic replica of an Asian temple and garden hidden amongst the natural beauty of Hawai'i.

This legendary city has been a tourist attraction for centuries.

A centuries old castle atop a dormant volcano houses museums devoted to both women and witches.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

The vast, legendary catacombs hold secrets much stranger than stacked bones.