These tracks are believed to be from a panicked dinosaur stampede.

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

Started nearly 100 years ago, this science experiment just keeps on going, ever so slowly.

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

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

The statue honors an adventurous seafaring cat.

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

Ninety years of Sydney buses under one roof.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

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

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

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

Outside the National Dinosaur Museum, dozens of dinosaur statues and sculptures claim the landscape.

With a surface area of nearly 500 square meters, welcome to the world's largest paraboloidal dish solar concentrator.

This copper-coated, multi-arched dome is surrounded by a moat and lights up at night.

A stargazing sculpture made from the ruins of an iconic telescope.

It's home to the antenna that received the first images of Neil Armstrong walking on the moon.

Honoring the annual National Cherry Festival.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

Giant, friendly pelicans in Central London, the most unlikely of places.

Monument that stands 40 feet and weighs 1,000 pounds.

6000-year-old coal fire moves one meter per year.

On the outskirts of an opal-mining town, these baths fed by a massive underground aquifer are a natural spa.

This giant dish located in a sheep paddock was the primary receiver of Apollo 11 TV transmissions.