This chimerical bridge/tunnel appears to dead end right into the sea.

The chefs at El Diablo use heat generated by an active volcano to cook the food.

Visit a surreal landscape so otherworldly NASA actually used it to train the Apollo 17 crew.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

Romania's triumphal arch looks out over Bucharest.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Fortified medieval tower house with lovely roof garden.

Jumping-off point for a climb up Mt. Everest is the most dangerous airport in the world.

A Himalayan monastery claims to have a piece of a centuries-old abominable snowman.

Last stop before the top of the highest peak in the world.

A New Zealand communications tower stands as the tallest structure in the Southern Hemisphere.

New Zealand's only running funicular railway.

Handcrafted thermal spa washes away each night with the tide.

The platform atop this verdant volcano was built with the help of a royal elephant.

This unusual rock formation looks like an apple that has been neatly sliced in half.

The world's only complete colossal squid specimen is on display at the Te Papa Museum.

The glacier tucked within a New Zealand rainforest.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

This strange geological landscape erupts with sudden bursts of water.

A solitary tree has grown up all alone on Lake Wānaka, backdropped by the beautiful Southern Alps.

Dolphins, ancient clams and hundreds of waterfalls make this one of the world's top tourist destinations.

Tubing through a cave lit with glowworms is a magical underground experience.