Lego Underground

To mark the 150th anniversary of the London Underground, five tube maps were made out of Lego. Four show the evolution of the system from 1927 to the present and one shows a possible 2020 system. The maps are on display at five different stations. The image below is from Digital Arts.

The London Underground Tube Diary has some pictures including the 2020 map at King's Cross station.

 There is also Harry Beck's original schematic map from 1933. It looks like needlepoint.

 Metro's image gallery shows all five maps. Here is the 1927 pre-Beck geographic (non-schematic) version...

...and some kid helping the unveiling at King's Cross.

The maps will be on display over the summer and then will be moved to the London Transport Museum.