This historic observatory contains the world's oldest refracting lens telescope.

Nine limestone rock stacks on Australia's "Shipwreck Coast."

Hundreds of tiny dead butterfly eyes gaze down at diners in this Australian eatery.

One of Australia's largest secondhand bookstores.

This pair of Australian "waterfalls" appear to be falling straight across the land.

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

A stray meteor left this picturesque hole in the Australian outback.

One of the best beaches in the entire world.

A clear example of the process of erosion in action.

The unique ecosystem atop an Australian mountain is home to some colorful inhabitants.

Prehistoric park filled with the fossils of dozens of extinct species including Australian megafauna.

The labyrinthine storm tunnels beneath the city of Melbourne are ruled by a band of urban explorers.

Built over an abandoned train yard, this hidden gem is full of winding paths and offers gorgeous views of Sydney Harbour.

The largest collection of medicinal plants in Australia is also home to a witch who will show you how to use them.

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

The only pollutant in the clear blue water is sunscreen.

A massive stairway that almost wasn't leads to one of Australia's most scenic vistas.

Woven tree art gives this towering Australian woodland a touch of mystical whimsy.

This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

A collection of outdoor mystical statues paying homage to indigenous Australians and ecological stewardship.

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

A castle hand-built by a Spanish dreamer in the Australian tropical jungle.

Australian Lake set aglow by Noctiluca Scintillans.

An abandoned railroad tunnel is now filled with bioluminescent bugs.