What looks like a birch tree smushed between two pieces of glass often confounds commuters.

This pair of unsuspecting buildings are in fact the very first modern skyscrapers in Europe.

A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.

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

A miniature model of the iconic Stockholm department store.

An abstract representation of weather in Sweden.

An 11th-century runestone decorates the halls of Terminal 2 of this Scandinavian travel hub.

These historical landmarks stand as reminders of the evolution of animal care and conservation.

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

An alien church provides much needed silence in the midst of a Finland shopping center.

This pub has roots dating back to 1430 and serves as the setting for multiple Charles Dickens stories.

Hidden beneath the streets of London is a secret subway that only carried mail.

This tribute to the fictional detective stands at the famous literary character's address.

The site of one of the largest non-nuclear explosions in history, created when a massive bomb dump accidentally exploded.

A public art project to commemorate a tumultuous period in Derby's history.

This public lavatory is home to a mini museum that explores toilets through time.

This sculpture is an homage to one of the most important Jewish women in medieval England.

Tombstones and enigmatic inscriptions hide within a vault beneath a popular London arts venue.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

Over several decades, one of London’s most iconic city gates was dismantled, moved out of the city, and then moved back.

An small and easily overlooked archaeology museum chock full of Egyptian artifacts.

This third-generation institution is one of the last in London that still cures its own salt beef for epic sandwiches.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.