Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

A celebrity from the late Cretaceous period.

The world-record holder for the longest bridge stretching continuously over water.

A boardwalk winds through this sliver of coastal nature hidden within Sydney.

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

This museum of Hawaiian and Polynesian culture is the legacy of the last descendant of the Kamehameha Dynasty.

Bird dung painted this huge boulder which in turn inspired the name of a city.

These bronze sculptures sow whimsy by hamming it up on a pedestrian mall.

An active seahorse farm is currently saving Tasmania's handfish from extinction.

The world's first cageless zoo is working to save endangered Tasmanian devils.

A small troop of Japanese macaques live peacefully in the heart of this Tasmanian city.

This modern pedestrian bridge on the Yarra River was modeled after an Aboriginal fish trap.

The sullen remains of vessels abandoned in the Port Adelaide River.

A giant baby floats in the middle of Singapore’s nature park.

This work of art was designed to represent the Tarpeian Way Quarry that once dominated the area.

Previously a hot spring, this park remains a site of unique history, wildlife, and geology.

Once the "Eighth Wonder of the World," this iron railroad bridge was decimated by a tornado.

Home to several unusual artifacts, including a huge painting of George Washington.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

The farming museum contains an extensive taxidermy collection, including the world's largest stuffed horse.

Home of a 28-foot tall stalagmite known as the War Club.

The first American woman to win the Nobel Prize in literature came from the foothills of Appalachia.

This functioning mill was built in the 1970s using parts from several other West Virginia mills.