This Australian beach became famous when Prime Minister Harold Holt disappeared from its shores.

More than 100 colorful residents stand post in this seaside Australian city.

A plaque at the lighthouse where Frederick Valentich made his last radio contact before he vanished without a trace.

This unique eatery offers a taste of Estonia's "Onion Route."

Designed by artist Pro Hart, built elsewhere in 1980.

You can climb to the top of the world's largest rocking horse.

The longest fence in the world stretches over 3,000 miles to keep the dingoes out.

Springtime is go time for this repurposed shack and the fish it venerates.

Thailand's country villages continue the tradition of gong-making, and invite visitors to watch the process.

You'll find the little birds tucked within the rocks of this Australian beach.

Rare remnants of the brick-domed ovens birthed in the Durham coalfield during the Industrial Revolution.

Colorful Native American paintings are hidden within this small cavern.

Ancient images hide within the park's caves.

Since World War II people have been decorating this stretch of the Yuma desert with signatures arranged out of rocks.

A series of eerie metal stick figures are spread out over four square miles on the bed of a huge salt lake in the Australian Outback.

Some of the world's largest letters are carved into the limestone bedrock of the Nullarbor Plain.

No one seems to know who suffered the disappointment at this particular place.

A tiny museum in Esperance, Australia, displays a bunch of space debris from NASA’s Skylab.

Nature is leading a successful mutiny on this century-old freighter.

This dramatic sea spire is home to the world's rarest insect and is part of the lost continent of Zealandia.

The world's largest Holstein cow.

This giant trout was made by a singular fisherman who wanted to honor his local trade.

There's nothing shrimpy about the world's largest artificial prawn.

This lagomorph-obsessed Route 66 emporium is home to a giant jackrabbit that sits in a bunny graveyard.