The largest greenhouse in the world is home to over one million types of plants.

Unconventional site where the tracks of Zurich tramcars intersect.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

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

Handcrafted thermal spa washes away each night with the tide.

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

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

Deadly scalding and one of the largest hot springs in the world.

The once and future home of New Zealand's famed Pink and White Terraces.

A Maori village obliterated by an 1886 volcanic eruption.

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

Highly spherical boulders on the shores of New Zealand.

New Zealand's epic shrine to all things puzzling.

Hundreds of bras, blowing in the wind.

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

This strange geological landscape erupts with sudden bursts of water.

The glacier tucked within a New Zealand rainforest.

Come for the flowers, stay for the bats!

This historic observatory contains the world's oldest refracting lens telescope.

This secret Australian garden was built on love after a man planted a random bulb he found in the ocean.

The yawning remains of a complex naval fortress still haunt this Australian shore.

Australian museum dedicated to human health and lack thereof.