A community gathering place that once housed half-ton tanks and the World's Fair.

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

The four tall pillars once marked the entrance of the historic Seattle church that fought for women's suffrage and civil rights.

A wall of chewing gum moonlights as collective art.

This grand old 80-foot sequoia towers above the buildings in the city’s retail center.

Five varieties of trees with custom-designed grates around the trunk are planted along the route of the Seattle Transit Tunnel.

This sculpture forces visitors to confront their relationship with space.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

In 2010, Nicolas Cage purchased two plots in this cemetery using one to construct this strange pyramid mausoleum.

The only rotating bar in New Orleans has been slowly spinning since 1949.

The little-known second castle that William the Conqueror built in York.

This network of narrow, medieval passages has the most delightful name.

The lasting remains of a bygone era of open-air meat markets.

The most loyal of little dogs, or a Victorian era publicity stunt?

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

Dedicated to the Father of the British Fire Service.

This Roman relic was discovered in Scotland by a mudlarking ferryman.

The 20th-century chapel’s intricate woodwork includes amazing details, most notably angels playing bagpipes.

A bronze statue of a low three-legged seat commemorates a piece of furniture that started a riot.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

This cannonball embedded in the side of an Edinburgh house once served a surprisingly pedestrian purpose.

A six-ton wedding present for the King of the Scots.

The final resting place of soldiers' loyal canine companions.