Water

The rusting hulk of a hand-powered, nearly 160-year-old submarine abandoned in 1869 due to the ravages of decompression sickness.

This floating cinema brings new meaning to the phrase "going out" to the movies.

This landlocked lake is the world's largest on an island.

A naturally beautiful, seemingly bottomless deep blue spring.

A record-breaking pool that uses computers to turn ocean water into cleaner, private swimming water.

Aqua white sand highlighted with fiery red rocks.

A long-disputed lighthouse built on the wrong side of a Finnish/Swedish island.

An abandoned town centered around a paper mill powered by a large waterfall.

The world's tallest boat lift stands as a massive piece of industrial tourism.

A faux desert landscape in the middle of the jungle that sprouts oases during the rainy season.

Sacred waters rescued from the wrath of a volcano.

The world's largest man-made underground caverns offer unparalleled underwater wonders.

Microscopic fossils suggest Australia may be the birthplace of sulphur-based life forms.

A freighter full of exotic animals ends a harrowing voyage impaled on uncharted rocks in the Boston Harbor.

The world's largest ship graveyard is the product of decades of corruption.

Three wildly colorful calderas top this otherworldly volcano chain.

Water and windows define this defensive Italian well.