A feat of railway engineering required to bypass a muddy quagmire.

The oldest observatory in West Australia.

This water wheel turned to stone in a matter of decades.

A metal skywalk leads to the top of this striking granite outcrop in Porongurup National Park.

The last vestiges of this ship are mostly buried beneath the sand dunes.

Although not officially the world's tallest bin, this giant trash receptacle was designed to stop littering.

A replica of an early 19th-century vessel that sailed across the world.

A surreal paleontological sculpture garden pays homage to a fading industry.

A tribute to those who fled the Great Famine and relocated to Australia.

The preserved left hand of a saint once known as "the Pearl of York."

Longest fortress system anywhere in Europe.

The complex has been abandoned since the Croatian War of Independence, barring a stint as a set for 'Game of Thrones.'

Home to one man's collection detailing the history of photography.

A tiny church on a man-made island in the Adriatic.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A curious little museum dedicated to the furry feline in the cat haven that is Old Town Kotor.

One of the largest open-air museums in Western Australia.     

Thanks to an acoustic anomaly, this unassuming stone bench has heard one hundred years of secrets.

This enormous censer uses a pulley system installed over 400 years ago.

An accidental trick of light casts the perfect shadow of a pilgrim of the Camino de Santiago against the cathedral wall.

Dedicated to the founder of "New Norcia."

A statue of Paulina Hermann, the eccentric noblewoman known as the "mother of cats."

A monument to the real explorer and bear who inspired characters in Philip Pullman's 'His Dark Materials.'

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.