Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

Iceland: home to volcanoes, waterfalls and, apparently, Santa?

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

A sulfuric martian landscape that looks far better than it smells.

Three columns of volcanic rock shoot out of the ocean.

The most powerful waterfall in all of Europe.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.

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

Medicinal spa created with the discharge from a geothermal energy plant.

The silly symbol for an underground protest group is now scattered around the city.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

This expansive bridge in the Canadian wilderness was originally just built for friends.

This giant roadside fruit is home to an array of apple-based treats.

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

This inexpensive lodging house was once a prison notorious for its inhumane practices.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

A pixel art killer whale is frozen mid-leap in this Vancouver square.

Little island known for its massive beachfront "flowerpot" pillars.

305 homemade stone stairs wind their way up the Hamilton escarpment.

Smallest house in Toronto sits on a lot meant to be just wide enough for cars to drive through.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

These strikingly barren, rolling red hills were caused by bad farming practices.