Egyptian treasure trove of fossils documenting the whale's transition from land mammal to sea creature.

One of Jeff Koons’s largest sculptures and his first commemorative work.

Two small chapels housed inside an ancient tree.

This former “ante-chamber to the guillotine” has been refurbished to illustrate the brutal history of French justice.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

A giant baby floats in the middle of Singapore’s nature park.

Walled family complexes in Southern China.

China's very own Atlantis is an ornate dynastic city resting at the bottom of a lake.

Guitar made of trees, dedicated to a man's lost love.

One of South America's most exclusive resorts has a storied history dating back to World War II.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

Architectural monsters are devouring this palace's every door and window.

Tucked among the sand dunes overlooking a Welsh beach, a real-life tribute to a fictional elf.

These two giant boulders mysteriously perched on a 60-foot cliff may have been slung up there by a raging tsunami.

This sheep farm has been forever transformed since being built for “The Hobbit” film series.

The world's first cruise ship-shaped hotel is perched atop a cliff.

Thousands of effigies of Buddha watch from caves set high above a legendary river, plus whiskey.

Thermal springs underneath the seabed provide the heat and bubbles for these beachside natural hot tubs.

This mountaintop lake bubbles and steams in a perpetual boil, thanks to its direct link to the Earth's interior.

Every October, one of the largest migration of mammals in the world thunders through Boma National Park.

The inhabitants of the world’s largest wetland have learned to navigate its dramatic seasonal changes.

In this pristine Ecuadorian hippie town, residents remain active well into their eighties and nineties.

The world's tallest aluminum statue is also the world's tallest image of a winged Virgin Mary.