Where dogs like the rare "Fire-Tailed Border Cocker" run free on the mountainside.

Superstitious? Discover the witchy side of Mexico through its largest esoteric market.

An ancient tree that was once the favorite of a young Swedish royal.

This strange portrait of six ladies with chicken bodies commemorates a count's dirty habits.

Sculpture of a bus made from wrecked passenger cars.

A Swedish phone box converted into an informal village library.

Sweden's oldest street has not changed for nearly a millennium.

A tiny town hall—in Sweden's one-time capital—might be the smallest in Europe.

From a distance, this structure looks like an ordinary office building but a closer inspection reveals a unique facade.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

The fastest way to send a message before electricity was invented.

An abstract representation of weather in Sweden.

The 19th-century home of Count and Countess von Hallwyl is now a museum.

A concrete mushroom that divided Stockholm residents for nearly a century.

A temporary art piece to celebrate LGBTQ Pride is now a permanent part of Stockholm's traffic landscape.

The palace for King Gustav III was never completed, but the foundation remains tucked away in this city park.

A tombstone on the grounds of the royal castle marks the burial site of a Swedish king's beloved dog.

Inside this church, a monument honors the first burial site of the famed philosopher.

A Stockholm metro station is home to an escalator that is not only the longest in Sweden, but among the longest in the world.

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

A king's bloodstained shirt is among the gruesome collection of artifacts displayed below Stockholm's Royal Palace.

Sound travels strangely in this underground whispering gallery.

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