This colorful creation wasn't always a welcome part of Toronto's Moccasin Trail Park.

The Victorian-era greenhouse is stuffed with tropical plants, and open 365 days a year.

A 98-room castle in the middle of Toronto that bankrupted a 19th century electricity multimillionaire.

This whimsical fountain pays tribute to Toronto's four-legged friends.

This subterranean oyster house has been the pearl of Grand Central Station since 1913.

150 or so scrounged-up lamps, chandeliers, and lanterns light up this alley in central Athens.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

The hallucinogenic center of the ancient world.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

Iceland's tribute to its thankless civil servants.

The picturesque birthplace of Icelandic democracy is drenched in the blood of its brutal past.

This stunning concert hall has become a symbol of Iceland's national recovery.

If a glacial river suddenly diving into a sheer chasm via a dramatic, multi-stage waterfall isn't peak Iceland, it's certainly close.

This valley of hot springs and boiling mud pots is home to the record-holding "Geysir," which originated the English word.

Three columns of volcanic rock shoot out of the ocean.

The oldest (maybe) swimming pool in Iceland is a stunning oasis built into the side of a lush hill.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Scotland still bears an enormous scar of its Roman past.

The heads of two giant mythological water horses honor Scotland's horselord past.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

Rising from the sea like a stone monster.

Medicinal spa created from the mineral-rich runoff of a geothermal power plant