A modest park memorial pays tribute to one of the Titanic's most revered storylines.

The gigantic preserved heart of a champion racehorse.

Hidden among popular Sydney golf courses is a little remembered graveyard populated by smallpox victims.

One of Sydney's oldest graveyards hides in plain sight behind a hospital.

The 18th-century home was disassembled into 253 cases and brought all the way from the other side of the world.

Taxidermy of the racing horse with a huge heart, who inspired hope in the Depression.

Australia's only intact colonial warship never saw action before being turned into a scenic wreck.

These naturally occurring but rare geological formations are each about the size of a small house.

Curious crater remnants in the middle of the Australian outback.

A series of sculptures beneath the waves promote ocean conservation and support coral reefs.

These tracks are believed to be from a panicked dinosaur stampede.

Final resting place for hundreds of prisoners of war.

A self-funded cemetery with a long list of inhabitants.

Dedicated to an "Unknown Man," this grave holds either the remains of a lovelorn suicide or a Cold War spy.

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

Relics of Australia's convict past, and a modern scene of unimaginable horror.

Dilapidated ruins that once treated a notorious young serial killer, currently hosting vandals, squatters, and ghost hunters.

Nature is leading a successful mutiny on this century-old freighter.

An Australian lake whose pink hue defies scientific explanation.

Final resting place of the most prolific Fijian cannibal of all time.

A war relic that has sat undisturbed since it crash-landed near Arno Atoll.

Tropical paradise strewn with hundreds of World War II wrecks.

The underground hideout of a Japanese soldier for whom World War II ended in 1972.

A network of fortifications that never saw conflict.