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

The Victoria-era quarantine station for Sydney.

The tallest sea cliffs on the Southern Hemisphere are a climber's worst nightmare.

The first tourist attraction to offer tours for interstellar tourists.

An Australian lake whose pink hue defies scientific explanation.

A wonder of natural limestone formations etched by millions of years of natural interaction between rainfall and rock and air.

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

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

A local landmark that has become a hub of graffiti and urban exploration.

Once the path of a railway tunnel, now home to thousands of glowing insects.

An obsolete form of timekeeping still marks the hour in this adapted 19th century lighthouse.

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

This shrine to film's most iconic wasteland wanderer is located in the very outback where the movies were shot.

This abandoned railroad tunnel is now home to a micro-colony of bats and a ghost train.

This historic Australian bridge was built by convicts with giant stone spikes to prevent cattle from falling off the sides.

Thousands of lawn gnomes have infested this Australian roundabout.

A massive concentration of algae is responsible for this lake's pink hue.

A sparkling sandstone cliffside that's worth a visit while it still exists.

The ruins of a once prosperous power station have become a mouldering seaside gem.

The holes in the world's longest golf course are in a series of different towns.

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

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

These Australian rock formations look like Martian beehives that have grown up out of the landscape.

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