An alien landscape of chalk-rock in the Egyptian desert.

This tiny little island has, as the name says, just enough room for its single house.

The middle finger of modernity.

First known as the "Sample House," this construction mash-up was meant to be a living catalogue of building styles.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

Each spring, a dreamlike carpet of bluebells overtakes the forest floor.

Fire meets ice at the southernmost volcano on Earth.

A geological bull's-eye visible from outer space.

This golden temple is surrounded by hundreds of stone tablets that comprise the "world's largest book."

Ethiopia's "smoking mountain" is in one of the hottest regions on the planet and is home to two lava lakes.

A million and a half tons of earth were used to create one of the world's largest land sculptures.

A castle hand-built by a Spanish dreamer in the Australian tropical jungle.

Rent out a glass igloo to watch the Northern Lights like you live in the future.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.

An island filled with hundreds of hanging, decomposing, decapitated dolls.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

Earth's tallest volcano is sacred to Native Hawaiians, and home to a dozen world-class observatories.

Moss and stone turn this waterfall into an otherworldly liquid veil.

World's largest cave was only discovered in 1991, and now offers tours to the public.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

Rising from the sea like a stone monster.

Part modern art project, part traditional chapel, this see-through church is only substantial from the right angle.

An unoccupied lighthouse encased in layers of ice from the waters of Lake Erie.