Ancient serpentine sacrifice holder that has stood the test of time.

Some of the clearest water anywhere in the world.

A perfect turquoise lake colored with glacier dust.

The only pollutant in the clear blue water is sunscreen.

Handcrafted thermal spa washes away each night with the tide.

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

WWI hospital ship lost in a cyclone turns up on the coast of Fraser Island, where she remains rusted and forgotten.

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

The glacier tucked within a New Zealand rainforest.

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

This piece of Australian modern art is part joke and part history.

This famous city eluded concrete detection until the early 2000's.

This southwest-styled home in Santa Fe claims to be the oldest house in America thanks to an ancient bit of foundation.

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

Hundreds of prehistoric stones, arranged in perfect lines in a French field.

A walk through the historic city center, under the streets of Seattle.

Fortified medieval tower house with lovely roof garden.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

The oldest operating pharmacy in the world features 800-year-old recipes.

Virgil's many-mouthed gateway to the underworld.

The Emperor Tiberius' palace of debauchery.

Largest necropolis in the Mediterranean.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The largest collection of Indigenous Australian artifacts in the world, and the rare museum where wood-and-glass cabinets have trumped interactive exhibits.