Small Easter eggs are hidden in the ventilation holes of the city's newest trains.

This Stockholm light tower can be controlled by anyone with a smartphone.

A paradise hotel turned from opulent to overgrown.

Eighty million natural history specimens call this gargantuan museum home.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

This "life-size" depiction of Mickey Mouse as a half-lobster is both whimsical and a bit creepy, standing guard over the Boston waterfront.

This New England covered bridge is home to the tale of a jilted lover known to haunt the area.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

This strange bovine gargoyle is said to have been put in as a passive aggressive form of revenge.

The celebrated eyesore created by starry-eyed sweethearts.

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

The Cathedral of Salamanca has a number of unusual carvings but none so surprising as a modern astronaut.

A hidden three-foot-wide house separates these two regal churches.

Elaborate tile work in this railway station tells the story of Portugal.

An unrealized Taoist palace left abandoned in a Houston suburb.

An interesting decoration on this historic site, this weathervane comes with as many legends as it does questions.

Statue commemorating the use of ether in anesthesia.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The massive machine creates cracking displays of indoor lightning.

These two giant boulders mysteriously perched on a 60-foot cliff may have been slung up there by a raging tsunami.

Stunning ruins of what was once the center of one of the greatest empires in East Africa.

Freddie Mercury's childhood home is now a monument to the iconic Queen rockstar.

This giant subway sculpture celebrates the fruit that inspired the theory of gravity.