Airports of London runways. Due to the location in London's western suburbs, Heathrow has had trouble trying to expand, with various expansion projects being cancelled.) As a result, the airport consistently runs at over 99% capacity and is often included on lists of the worst-rated airports in the world. However, on 1 July 2015 Heathrow's expansion plan was suggested as the best option by the Airport Commission and on 25 October 2016 a new northwest runway and terminal was approved by the Government. The airport is connected to Great Britain's motorway network via the M4 and M25 motorways, to London Paddington station by
Aydıntepe underground city Aydıntepe underground city The Aydıntepe underground city () is an ancient underground city in Aydıntepe district of Bayburt Province, Turkey. It is located northwest of Bayburt beneath a residential area. Discovered by coincidence during excavation works for a building construction in 1988, -to some sources in 1998– the underground city at Aydıntepe features chambers, halls and hallways carved out of volcanic tufa rock formation without using building materials. It is situated under the surface. The chambers and the halls are connected with -wide and -high hallways stretching over about in length. There are eight conical shafts over the hallways, which