5,000 skulls in memorial to those killed by the Khmer Rouge.

A battle between nature and architecture in the Cambodian jungle.

Memorial to the father of the Republic of China.

This collection of lakeside pagodas and temples are flanked by giant lions, tigers, and dragons as well as their welcoming maws.

A waterfall runs right through the middle of this Taiwanese shrine to the hundreds of workers killed while building a nearby highway.

An extraordinary natural landscape of mountains, waterfalls, and rocky cliffs riddled with tunnels.

An engineering masterpiece, or “Scheme of Madness?”

A colorful street named for the legendary Australian rock band.

Visible from both land and sea.

The world's tallest shot tower—maybe.

For a century, the tallest building in Tasmania was a tower built to manufacture ammunition.

A beautiful hike through national parks, forests and beaches in Western Australia.

Brisbane's manmade urban beach has enough water to fill five Olympic-sized swimming pools.

The world's "leaniest" tower encourages you to test the gravity of its situation.

Relics of Australia's convict past, and a modern scene of unimaginable horror.

This Australian beach is composed of tiny shells.

Alien rock formations grown from the sands of an Australian national park.

Thousands of lawn gnomes have infested this Australian roundabout.

This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

Taxidermied animals galore, by appointment only.

Spitalfields' regal market goat is said to be a monument to the area's migrant population but most are pretty sure it's just a goat.

This small museum in a former church crypt contains artifacts of the Elephant Man, Jack the Ripper and Florence Nightingale.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.