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

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

A Maori village obliterated by an 1886 volcanic eruption.

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

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

These two delightful animal-shaped buildings host a visitor center and wool shop.

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.