This coffee shop lies hidden beneath a historic church.

The medieval woodcut-style artwork chronicles life in medieval London.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

London's smallest police station is barely the size of a phone booth.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

A domino effect created with Britain’s iconic telephone boxes.

No one knows who created the statues or if they are arranged properly—let alone the artwork's real name.

This beautiful deer park was built so King Charles I and his court could go hunting while escaping a deadly plague outbreak.

Every year locals tumble 650 feet down to the bottom of the hill chasing a Double Gloucester cheese.

A miniature village mimics the surrounding buildings so well it includes itself.

The home of an eccentric Edwardian gentleman is packed to the rafters with handcrafted items collected over a lifetime.

A petite castle folly in the English countryside.

A Gothic-inspired fish market is Gothenburg's best place to find loaves and fishes.

The world's biggest floating museum in Gothenburg, Sweden.

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

An oil drilling mistake created this fountain that has been spraying water for over 150 years.

If there is one thing you don't want to be in Sweden during Christmas, it's a Yule Goat.

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

Enormous ants wielding giant pine needles guard a Stockholm real estate company's office.

Sweden's first nuclear reactor, R1, can be visited 25 meters underground.

This poured-concrete water reservoir is a gem of modernist architecture well-hidden in a city forest.

Sweden's "good old days" painstakingly re-created in a model village.

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

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