This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

Medieval irrigation channels built into the sides of mountains provided Valais with water for hundreds of years.

This natural wonder drops 16 stories straight down through rare flora and streaming waterfalls.

A Texas cave network is home to some of the world's most spectacular-looking and bizarrely named mineral formations.

This hilarious English intersection is an automotive whirlpool.

The granddaddy of English geoglyphs dates back to the late Bronze Age.

A rare wayfinding portmanteau of “Street” and “Avenue.”

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

This rare volcano spews the strangest and (literally) coolest lava in the world.

A statue honors the local legend that the devil helped build St. Mary's church after being tricked into thinking it was going to be a wine bar.

The Pennsylvania landscape depicted by a quarter mile of mosaics made from used road signs.

You can cross from one country to another in a single hop on this little bridge.

Living fossils in this remote Australian bay provide a glimpse of what Earth may have looked like 3.5 billion years ago.

Four bald cypress trees in Lafayette Square, across from the White House, mark the southern edge of a 100,000 year old cypress swamp.

From carts to cars, this leftover Roman bridge in France has managed to survive for centuries.

A time-capsule monument reminding future generations of the importance of efficient and effective use of natural resources.

Hidden in the hills is a mysterious stone structure, known only to a few.

The ancient tomb acts as a calendar that keeps perfect time.

The largest earthwork effigy in the world.

An ancient iron pillar in Delhi that seems to be rustproof.

A perfect circle of 24 mysterious holes dates back to prehistoric times.

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.

The "Greatest Sewer" of ancient Rome is one of the oldest sewer systems in the world, and is still in use.

The longest living non-clonal organisms on Earth.