The art museum is decorated with creatively remodeled pre-Nazi swastikas.

A collection of noses tucked inside an art museum reveals how times have changed.

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

Copenhagen's celebrated theme park and gardens.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

A terrific purveyor of natural history objects and curios.

The granite head appears to be deep in thought and half buried in the ground.

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

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.

Few other hotels can rival the grandeur of the Castle in the Rockies.

The bank that helped fund the Mexican-American War and the purchase of Alaska met its downfall after helping Augusto Pinochet launder money.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

D.C. once had its own tiny rival to the New York Stock Exchange.

A line of blue paint marks the route of the inaugural parade.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

One of the most influential presidents in U.S. history wanted only this plain, elegant monument as his lasting memorial.

This nine-story building is the oldest standing skyscraper in D.C.

A muscular Art Deco monument represents the struggle between regulators and unbridled markets.

An overlooked memorial honoring the local Washington residents who died in World War I.

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Daredevil repair workers can worm their way out the access hatch, loop ropes over the apex and rappel down the monument.