A small but immensely extravagant palace built by the "Night King."

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

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

Exotic feline breeding compound and conservation center.

On Japan's Tashirojima Island, cats are king.

The land is home to swimming ponies and a legendary 18th-century treasure.

San Francisco's urban bison herd has persisted in the face of extinction, development, and disease.

Staircase winds down the side of Telegraph Hill through gardens, wild parrots flying overhead.

Recovered from the brink of extinction, at home in the Financial District.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

A toxic ghost town sitting atop a massive coal fire.

One person's lost luggage is another person's treasure.

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

Moonbows over Kentucky.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

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

A 16th century chapel decorated with bones, skulls, and entire bodies hanging from the wall.

Thousands of well-dressed mummies below a monastery.