This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This dramatic sea spire is home to the world's rarest insect and is part of the lost continent of Zealandia.

An eccentric inventor's castle home with its own indoor weather system.

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

An abandoned marine theme park has created a difficult experiment in dolphin rewilding.

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

Putt your way around Australia in a black light environment.

Clusters of huge boulders in the Australian Outback.

Living fossils in this remote Australian bay provide a glimpse of what Earth may have looked like 3.5 billion years ago.

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

This Australian beach is composed of tiny shells.

An unphotographable nightly march of tens of thousands of "fairy penguins" from sea to shore.

When you get to Magnetic Hill park near the sign, put your vehicle in neutral gear, and watch it roll uphill...

A beautiful, but toxic, lake formed by mining.

Rainforest filled with record-holding eucalyptus.

Visitors can swim with vicious predators in Crocosaurus Cove's plastic daredevil enclosure.

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

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

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

An opal mining town in the middle of Australia where people live, worship, and shop underground.

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

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

The only pollutant in the clear blue water is sunscreen.

This extraordinary geological oddity resembles human-made pavement.