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

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

The only example of a Paris Métro sign in use at a subway station outside of the French capital. 

A massive Montreal stadium that has seen nothing but trouble since its inception.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

A poignant museum dedicated to the history of the Dutch resistance against Nazi occupation

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

One of Amsterdam's narrowest houses is located right across the canal from its widest.

This bird-loving brewery is situated in an old municipal bathhouse, nestled beside a 300-year-old windmill.

The attic of a four-century-old canal house hides a clandestine church.

A monument to the 4,114 Irish orphan girls who arrived in Australia between 1848 and 1850.

A special train service transported Sydney's dead from this station to "Necropolis Receiving Houses" at Rookwood Cemetery.

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

Come for the flowers, stay for the bats!

A collaboration of art and ornithology mourns the calls of Sydney's lost birds.

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