This Australian beach became famous when Prime Minister Harold Holt disappeared from its shores.

The 25-million-year-old cavities have perplexed people for decades.

The artist behind this historical depiction of transportation remains a mystery.

Inspired by the local football team, this giant ant is meant to draw tourists to a tiny Australian town.

The world's tallest shot tower—maybe.

The taxidermy remains of the mighty beast made famous by a Crocodile Dundee film.

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

These flying foxes dangle from the trees around the library like fuzzy black fruit.

The colony of South Australia was proclaimed on a hot December day under a distinctively arched gum tree.

Australia's first open air museum and antique 3D theater.

The statue honors an adventurous seafaring cat.

One of the first big sculptures anywhere in Australia.

There's nothing shrimpy about the world's largest artificial prawn.

One of Australia's famed "Big Things," this giant fruit was once stolen as part of a publicity stunt.

The largest wax museum in the southern hemisphere features a grizzly chamber of horrors.

After much poking and prodding, this island is decidedly not a magnetic anomaly, but it sure is pretty.

Once housing children next to hardened criminals this historic jail once displayed Ned Kelly's skull until it was stolen.

Cockatoo Island is a Heritage-listed island in the middle of Sydney Harbour.

White cockroaches and other cave species occupy this massive series of lava tubes.

Relics of Australia's convict past, and a modern scene of unimaginable horror.

Come for the flowers, stay for the bats!

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

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

One of Australia's largest secondhand bookstores.