Thought to have been built sometime between 800 and 1100 AD, around 2,000 Erdstall tunnels can be found across central Europe, particularly in Bavaria, where there are over 700. With only one way in ...

A decade after it was first revealed, London's "super sewer" is now finally complete. The £5 billion (US$6.3 billion) project ...

Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...