Ghosts of past spies haunt London underground tunnels Behind a blue door in a narrow London passage lies a little-known network of tunnels deep underground, once home to British spies and a secret ...

In a last ditch effort, Denis Kurta and Dmitry Fedotov squeezed through a narrow, 100-meter-long (328-foot-long) passage called the Way to the Dream, which successfully bypassed the sump and ...