The inky volcanic sand leads to reefs teeming with aquatic life waiting to be discovered by snorkelers and divers.

Sacred waters rescued from the wrath of a volcano.

Bali's remote "gateway to heaven" is one of the most sacred places on the island.

This phantom island appeared on maps for over a century before amateur radio enthusiasts beat Google Earth to the punch in its "undiscovery."

Three wildly colorful calderas top this otherworldly volcano chain.

This mile-wide crater high in the mountains of Indonesia is the largest gold mine in the world.

Ancient images hide within the park's caves.

This Australian beach is composed of tiny shells.

Living fossils in this remote Australian bay provide a glimpse of what Earth may have looked like 3.5 billion years ago.

Incredible rock formations jut from the southern end of this spectacular stingray-viewing spot.

Alien rock formations grown from the sands of an Australian national park.

An abandoned marine theme park has created a difficult experiment in dolphin rewilding.

Thousands of lawn gnomes have infested this Australian roundabout.

A monument to a working class martyr.

Visible from both land and sea.

The world's "leaniest" tower encourages you to test the gravity of its situation.

Hundreds of people walk past this palm tree every day without spotting its secret.

One of Australia's largest collections of preserved animals is on display in a historic theater.

A beautiful hike through national parks, forests and beaches in Western Australia.

An engineering masterpiece, or “Scheme of Madness?”

This sculpture honors the legacy of Australia's now-defunct, Black Rock Stakes wheelbarrow race.

A town whose main resource was blue asbestos... what could possibly go wrong?

On Keriri/Hammond Island, a marker shares the story of an imprisoned woman and the island she saved and that eventually saved her—in the fictional world of Kcymaerxthaere.

Critics argue this boab tree has been mislabeled for the sake of dark tourism, undermining its spiritual significance.