To celebrate the 150th birthday of the London Underground, they (whoever “they” are), have commissioned five Tube maps made from Lego.
They (the maps, not “they”) are being displayed at various Tube stations throughout the network. They range from the system in 1927 through to the future. The one above shows the Tube as it will be in 2020.
Brilliantly, the maps were made by Duncan Titmarsh, who is described as:
the UK’s only certified LEGO professional
yet another job that must pay better than science.