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

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

Metal horses galloping through a London fountain provide a link to the city's past.

This plaque in one of London's oldest public hospitals commemorates the first meeting of two of Britain's most famous literary heroes: Sherlock Holmes and Dr. Watson.

This bookstore serves recipes from the cookbooks on sale.

This pub boasts a curious history and may have inspired a Dickens character.

Residential building on the Regents Canal is a breeding ground for creativity and innovation.

The pretty iron lamp is a reminder of the architecture underneath London's streets.

A relic of Victorian grandeur hides beneath a busy South London road.

In the waters outside Helsinki, a tiny island once used as a military outpost now welcomes visitors.

Finland's oldest astronomical observatory once played a crucial role in seafaring and timekeeping.

A small island dotted with old, historic Finnish buildings.

A subterranean house of worship carved right out of the bedrock.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

A lovingly curated curio shop in which the taxidermy wear newspaper party hats, and peanut shells are spread across every surface.

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

The apartment where Pippi Longstocking came to life.

This small museum nestled inside a souvenir shop is dedicated to Sweden's most well-known toy.

The suspected burial mound of legendary Viking Björn Ironside.

A man has revenged his true love's betrayal through tears and stone genitalia.

The remains of Alfred Nobel's first nitroglycerine factory can still be found on the shores of a Swedish bay.

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

Street artists transformed this abandoned industrial neighborhood into one of Europe's largest graffiti exhibitions.

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