Outdoor art exhibition made of classic Tetris pieces.

These sea cliffs are an epic natural wonder.

A colorful street named for the legendary Australian rock band.

The sand is such a bright white that on sunny days you practically need sunglasses to look at the ground.

A remarkable lifelong collection of antiques and art preserved in a historic Melbourne townhouse.

The Australian lorikeets that like to tie one on in an annual drinking binge.

People can't get enough of these adorable Japanese photobooths.

A forest full of mystical fantasy figures, nearly destroyed by recent fires.

This eccentric cave dwelling is bizarre even by the standards of a subterranean town.

A clear example of the process of erosion in action.

Dilapidated ruins that once treated a notorious young serial killer, currently hosting vandals, squatters, and ghost hunters.

The only pollutant in the clear blue water is sunscreen.

Woven tree art gives this towering Australian woodland a touch of mystical whimsy.

A massive stairway that almost wasn't leads to one of Australia's most scenic vistas.

Once the path of a railway tunnel, now home to thousands of glowing insects.

Australian Lake set aglow by Noctiluca Scintillans.

An immersive projection art installation uses sound, scale, and light to take visitors inside classic works of art.

An off-the-beaten-path boutique stuffed with an eclectic collection of upcycled goods.

The subterranean "lake" below the Paris opera house inspired the Phantom of the Opera's lair.

A subterranean shelter remains intact under a busy Paris railway station.

France's national museum of scientific and industrial instruments.

A mechanized clock where a man fights off a dragon, crab, and rooster.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

Paris' linguistic guide to the international language of, yes, love.