This trio of stone spires claims to be the only preserved medieval execution site in Europe.

Legend has it that this large rock maze in Sweden was created as punishment by the daughter of a wealthy captain.

"There's nothing there," and other lies the KGB told us.

This newly renovated Soviet-era outdoor exhibition center is bigger than the principality of Monaco.

Moscow's imposing monument to the Space Age.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

This wonky bit of historical taxidermy is experiencing a second life online.

Stone carvings record the Norse myth of Sigurd, providing a glimpse into Scandinavia's transition from paganism to Christianity.

The remnants of a record-setting industrial bucket system can still be found dotting the Swedish countryside.

An eclectic sculpture park rises atop a giant pile of ashes in Sweden.

Legend has it this spring formed at the spot where a medieval Swedish king was killed.

A rare rune stone dedicated to a woman.

A large collection of ancient runestones decorates this university courtyard.

Legend says this fabled well held part of a mythical Norse tree.

The official meeting point for the oddly named governing assembly of ancient Sweden.

Ancient burial grounds of the wealthy.

This mysterious runestone embedded in a church wall is linked to the medieval cult of Saint Erik.

Not quite the cultural gateway between China and Sweden its designer imagined.

A massive land art sculpture fills a green space once tarnished by a landfill.

These spooky and unusual stone formations create an underworldly landscape.

This charming fountain honors Felix Salten, the creator of the iconic storybook deer.

Vines grow up the metal bars in this public park created from an old machine factory.

Monkeys inhabit the lush forest surrounding ancient Mayan ruins once considered sacred.

A mythically themed self-built sculpture park.