This singular Irish dolmen is more Frank Lloyd Wright than upright stonehenge.

This secret Australian garden was built on love after a man planted a random bulb he found in the ocean.

This French anatomy museum greets guests with a skinless man, mid-shovel.

This Sumatran root bridge took almost 30 years to knit itself together.

This replica medieval European village in the Dominican Republic was built by a Hollywood set designer.

A portion of the old Pirates stadium over which a defining home run once flew still stands even after the rest of the stadium was torn down.

This tiered waterfall is so pretty it may cause visitors to cry tears of their own.

A tiny plaque hidden miles into the Washington wilderness is all that remains to honor a shipwreck that left 18 people dead.

For better or worse, this whimsical sculpture garden was a favorite place of Rupert Murdoch's.

Oslo's historic toboggan run has been letting thrill seekers slide from train stop to train stop for over a century.

First known as the "Sample House," this construction mash-up was meant to be a living catalogue of building styles.

Fresh wooden posts have been added to ancient holes to recreate a primitive henge clock.

This Hawaiian cattle ranch acts as a museum devoted to the island cowboys that predate the wild west.

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

A crumbling staircase in upper Manhattan is all that remains of one of the most important sites in sports history.

This historic-shipwreck-cum-diving-spot can still be seen poking its boiler out of the Lake Michigan waters that claimed it.

A monument to the art of slicing people open.

The pedestrian traffic signals in Brazil's teeming metropolis light up with clues to nearby landmarks.

Manhattan and the Bronx have been playing tug-of-war over this former island neighborhood for more than a century.

This historic lavatory leftover features two levels of defecation stations completely without context.

This small, but long-running hobby club has built one of the largest model rail lines in the US.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

The last of Philadelphia's wood-paved streets is now a landmark of terrible engineering.

A giant bronze monument to Kim Il-sung and Kim Jong-il is one of the most sacred sites in North Korea.