17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

A particularly disconcerting tribute to Irish martyrs.

These gigantic skeletons tower over visitors and provide insight into the creatures that once ruled over Ireland.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

A tiny, heartwarming piece of art hiding in plain sight.

In Portugal, a secluded stretch of untouched natural beauty hides at the bottom of a steep hill.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

The largest of Denmark's seven mysterious round churches stands on an island in the Baltic Sea.

A model memorial to the original Odin Tower, the second highest tower in Europe before it was sabotaged by Danish Nazis.

Plans for this local observation tower were debated for so long, the allocated funds lost value and the design had to be changed.

The world's first combination ski slope and power plant.

This huge industrial sculpture looks like a UFO and a factory had a baby.

This Danish art forest places loud works of contemporary art among the pensive silence of nature.

These old World War II fortifications have been transformed into an unusual equine attraction.

Dozens of musicians have planted trees in this Danish park, and donated songs to go with them.

Hans Christian Andersen for the postmodern world.

This sublime architectural marvel is a rare example of an expressionist church.

This quiet bird sanctuary on the Danish coast is home to something not usually found in a conservation area: hunters' cabins.

An old Danish political institution where members of government can grab a drink off the record.

A public display of random paleontology.

A failed attempt to control drifting sands yielded a gnarled sylvan wonderland.

This Denmark theme park is part family attraction, part experimental archaeology project.

The oldest amusement park in the world has been providing a nice spot to have some fun since the 1500s.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.