One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This fantastical waterfall is hidden in a cave located in a cracked cliff.

The unique waterfall in Iceland's south features a backdrop of geometric black lava columns.

A breathtaking 19th-century trail overlooks Lake Tahoe.

The ruins of New Zealand's largest classical-style church.

This aluminum “stairway to heaven” has impaled at least a couple of birds.

An unusual and powerful memorial in which earthquake victims are remembered by empty white chairs.

One of the largest collections of traditional Māori artifacts in New Zealand.

Handcrafted thermal spa washes away each night with the tide.

New Zealand's epic shrine to all things puzzling.

Highly spherical boulders on the shores of New Zealand.

Modern art meets modern convenience in possibly the world's most architecturally important public bathroom.

One of the world's steepest streets seems to have houses sliding down it.

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

The most southerly spot on New Zealand's South Island is home to surreally shaped, permanently mangled trees.

A glacier pocked with ice caves and surrounded by rainforests.

This electric green sulphur lake in New Zealand looks like a cartoonish radioactive dump site.

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

The Dalai Lama named this New Zealand landscape the "Spiritual Center of the Universe."

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.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.