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

A railway station takeout shop sells boxed meals in containers shaped like trains and snowmen that hold the country’s abundant regional delicacies.

This coffee shop lies hidden beneath a historic church.

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

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

Catacombs turned marketplace.

A subterranean ice warehouse that has lain hidden beneath central London for over a century is now open to the public.

This 1920s Dutch barge is now a floating bookstore.