An enormous concrete structure built over a nuclear crater.

The birthplace of both the Atomic Age and Godzilla, and the namesake of the bathing suit.

This beautiful eden was once the vacation home of Tahitian royals before Marlon Brando bought it.

This garden boasts a magnificent collection of orchids and a spectacular view of the surrounding valley.

Children's playground hidden under a big pink and blue cap.

Though considered an eyesore by some, this boxy Brutalist high-rise plays a significant role in Sydney's past.

The world's first indigenous rooftop farm boasts 2,000 plants from more than 35 different native Australian species.

Outdoor art exhibition made of classic Tetris pieces.

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

A 100-foot-tall mural in South Australia.

A pristine crater lake 12,000 years in the making, with waters like cut glass.

This 86,000-square-foot artwork is the largest mural in the world to cover a dam.

A timber transport car and a team of horses were needed to carry this lookout to the top of Mount Tarrengower in the 1920s.

Once a welcome symbol for maritime travelers entering Edrom.

The La Trobe Swing Bridge was the first movable bridge constructed in Victoria.

This natural amphitheatre has been carved over millennia into the layered sedimentary rock of Karijini National Park.

This restored station garage allows visitors to step back in time at this remote outpost on the Nullarbor Plain.

The site of a tragic mining disaster in 1882.

The oldest observatory in West Australia.

This school was established during the height of the Australian Gold Rush.

Though it may look like a Modernist cathedral, this structure was built to store massive quantities of grain during World War II.

This salt lake was a former mine site and now attracts visitors for its remarkable pink colors.

Wild seas have created two spectacular formations just a stone's throw away from each other.

A feat of railway engineering required to bypass a muddy quagmire.