Climb to the top of its spiral spire for spectacular views of Copenhagen.

Iron Age "bog person" preserved for over 2,300 years.

This Danish rock field is actually a sprawling ancient cemetery holding the bodies of 700 Vikings.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

This secret collection of the strange and occult was rediscovered in a forgotten room of an old house.

A natural wonder in south Denmark.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

Six beautiful wooden giants are hidden around Copenhagen.

A walkable map of the world, made from soil and stone by one man.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

Home of the world's smallest dinosaur footprints.

One of the last remaining buildings from one of Calgary's earliest businesses.

This egg-shaped treehouse was inspired by "sport sleeping."

Secret Swing.

What was once the largest mine in North America has left behind a hollow hill filled with bright blue waters.

This patch of old-growth forest is home to Canada's gnarliest tree.

Though many were skeptical at first, these animal-specific routes across the Trans-Canada Highway have been a major conservation success.

Three young men who lived on this street are honored for their service during World War I.

When North America was covered in ice, this was an oasis in the frozen desert.

Try the alligator at this fondue spot, which has been catering to "lovers and hedonists" since 1967.

The natural hot spring that was integral to the creation of Canada's first national park.