A significant example of Czech cubist architecture—a style you won't find anywhere else in the world.

The bones of this aquatic dinosaur turned to opal over the centuries and the beast's remains were almost sold as jewelry.

A rare specimen of an iconic extinct animal in downtown Sydney.

Hidden within Sydney’s lush Royal Botanic Garden is a walled cactus rockery and the site of Australia's first zoo.

A 19th-century perch for spotting sailing ships now boasts one of the most iconic views in the Southern Hemisphere.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

According to the local legend, these boys and ducks were turned to stone by an angered water goblin.

An island in the middle of a lake, in the middle of a volcano, in the middle of a bigger lake, in the middle of a bigger island, in an archipelago, in the Pacific Ocean.

An LED art installation composed of 600 poles wrapped in kimono fabric.

This 4.5-meter-tall statue of a native Australian bird marks Hydro Aluminium's 40th year in the area.

A state-of-the-art medical facility dedicated to treating beloved birds of prey.

A striking bronze sculpture of a Roman goddess with two hound dogs for company.

A sculpture of the beloved author surrounded by characters from his fairy tales.

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

In the middle of a Vienna square, Roman ruins dating back some 2,000 years are on display.

On Waikīkī Beach, a monument to four extraordinary individuals of dual male and female spirits who brought the healing arts from Tahiti to Hawai'i.

A Stockholm metro station is home to an escalator that is not only the longest in Sweden, but among the longest in the world.

The name of this ancient Indonesian temple translates as "Elephant Cave" but it could be more accurately called "The Hellmouth."

Also known as the Blue Church, the building was consecrated to the daughter of Andrew II.

Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

One Portuguese poet described this cape, the westernmost point in mainland Europe, as "where the land ends and the sea begins."

The world's largest wooden structure.

It's beautiful, it's haunted and its claim to fame is that it's the oldest existing stone arch bridge in Australia.

The world's only full-size replica of the research hut used by Douglas Mawson for his 1911-14 Australasian Antarctic Expedition.