The London Underground. Worlds first underground railway, opened 10th Jan 1863 also worlds longest underground with 251 miles of track
| Line | Colour | Number of Stations |
Length of track (km) |
|---|---|---|---|
| Bakerloo | Brown | 25 | 23.2 |
| Central | Red | 49 | 74 |
| Circle | Yellow | 27 | 22.5 |
| District | Green | 60 | 64 |
| East London | Orange | 9 | 8 |
| Hammersmith and City | Pink | 28 | 26.5 |
| Jubilee | Grey | 27 | 36.2 |
| Metropolitan | Burgandy | 34 | 66.7 |
| Northern | Black | 51 | 58 |
| Piccadilly Royal | Blue | 52 | 71 |
| Victoria | Light Blue | 16 | 21 |
| Waterloo and City | Teal | 2 | 2.4 |