A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

Hundreds of glow-in-the-dark objects light up a museum in a historic zinc mine.

The best-preserved ancient theater in the world.

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

Ireland's most remarkable collection of these curious cone-shaped houses is worth the buzz.

Mysterious heaps of stones dot these otherworldly woods.

An ancient instrument used to measure the waters of the Nile so Egyptian farmers would know whether to expect famine or flood.

The first geometric self-supporting spiral stairs in Britain are a truly beautiful sight.

The world’s highest ski resort was deserted after an 18,000-year-old glacier melted away.

An architect transformed this abandoned cement factory into his castle-like workshop.

These magnificent city walls rise from the barren sun-baked Spanish plains like something straight out of a fairytale.

Each spring this woodland floor is carpeted with purplish flowers as far as the eye can see.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

This floating garden in the sky is straight out of a fairy tale, but the real thing is nothing short of magical.

An enormous, inside-out glass globe built in 1935.

Hidden in the shadow of a rocky fortress is one concubine’s long-forgotten legacy.

This enchanting 600-year-old tree is so magical it inspired the beloved tale of Pinocchio.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

This modern arts center is built around a gem of late-Baroque architecture.