An unusual round church in London with a Templar past.

The largest of London's subterranean rivers and once a mad, bad center of London life.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

The "beautiful" equation predicting the movement of all electromagnetic particles is engraved in front of Newton's tomb.

Pop culture has helped to keep this iconic British building from being destroyed.

London's old-school healing garden.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

A colorful square marks the heart of the city's LGBTQ community.

This haunting tombstone comes complete with a heartbreaking story of love and loss.

A Beaux-Arts triumph set to become Ford's innovation campus

This giant roadside goose has been hailing travelers into a small Ontario town for over 50 years.

Profile of a sleeping person 4km long in 250m high cliffs.

This working class sculpture pounds his hammer all the livelong day.

A colorful architectural gem in Seattle's uniquely modern Central Library.

One of the now-less-hidden floral gems of the "Emerald Necklace."

One of the last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

This impressive Boston holy house is the American mecca for Christian scientists.

An enormous, inside-out glass globe built in 1935.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

At 207 feet, one of the world's longest continuous escalators.

There’s a hidden military meme engraved on the World War II Memorial.

This stunning blue and gold room changed cities twice before becoming part of the Smithsonian.