This modern pedestrian bridge on the Yarra River was modeled after an Aboriginal fish trap.

The largest collection of Indigenous Australian artifacts in the world, and the rare museum where wood-and-glass cabinets have trumped interactive exhibits.

The oldest observatory in West Australia.

This work of public art symbolizes the maritime history and the modern creative industry in Fremantle.

This ancient limestone cave system contains many impressive geological features.

One man's artistic vision is a small town government's legal battle.

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

This abstract sculpture was initially so disliked that it got moved to the outskirts of town a few months after installation.

The former home of Victoria's first Lieutenant-Governor.

Home to the oldest operating roller coaster in the Southern Hemisphere.

Outdoor art exhibition made of classic Tetris pieces.

A remarkable feat of Victorian engineering across the Firth of Forth.

The gigantic preserved heart of a champion racehorse.

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

The Great Fire of London and the regulation of one-way streets both started in this alley.

This Underground station has been a popular filming location for decades, even before it closed.

The medieval woodcut-style artwork chronicles life in medieval London.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

This pump on the bad side of Victorian London betrayed a horrifying revelation about the water supply.

A memorial to a dog that inspired rioting in the streets of London.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

The television series' iconic giant foot was borrowed from this classical painting.

Scattered throughout London are ancient remnants of the city's former bounding wall.