Enigmatic bug-like sculptures mystify drivers along a Swedish highway.

This poignant sculpture of a gnarled weapon is a symbol of non-violence.

A former hen house turned curiosity cabinet displays one man's lifelong fascination with cannibalism.

Hundreds of mossy stones engraved with bits of philosophy, literature and random musings.

The world's oldest individual clonal tree looks like a wimp despite standing tall for 9,550 years.

This chimerical bridge/tunnel appears to dead end right into the sea.

According to legend, this boat-shaped henge is built over the grave of a mythic king.

Stockholm's narrowest alley is barely over two feet wide.

Crooked windswept pines give this old forest an enchanted and magical look.

The world's first ice hotel is still one of the most elaborate and beautiful.

Stockholm's deepest subway station is also a stunning ecological wonder.

A rare surviving Victorian greenhouse designed specifically to house giant water lilies.

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

A series of modernist treehouse hotel rooms grace the outskirts of an Arctic forest.

Dine on food tied to Viking history and legend at this subterranean Stockholm spot.

It houses the remains of a 17th-century version of the Titanic.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.