The longest timber-piled jetty in the world has an underwater observatory.

This ancient rock shelter features cave art and is one of the most culturally important sites in the country.

Three-story concrete ram with a permanent gift shop.

The sand is such a bright white that on sunny days you practically need sunglasses to look at the ground.

Concrete spud looks like the North American Sebago.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

A former drinking water storage reservoir transformed into a sunken garden.

The final resting place for many Japanese divers who tragically lost their lives in the Australian pearling industry.

The oldest operating picture gardens in the world.

Spectacular rock formations host dinosaur footprints and an old hydrotherapy pool.

One of the few places in the world home to living stromatolites.

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.

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

A metal skywalk leads to the top of this striking granite outcrop in Porongurup National Park.

Giant fruit signaling the entrance to a tropical paradise.

This outdoor museum harkens back to the height of the gold rush.

A monument commemorating the lives lost when a plane crashed into Mount Macedon in 1948.

A tribute to the fallen of World War I now honors all who have lost their lives to war.

This artificial lake was built to provide water for a planned facility that would treat tuberculosis patients.

This historic Melbourne bullet factory is fully encased in a massive glass and steel cone.

This giant, granite purse is one of Melbourne's most unique and distinctive pieces of public art.

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

Not the result of an accident, hurricane, or aliens, this is an eye-popping tribute to the Melbourne tram.