The tube from the air

Very incorrect geographically :-P

Very good, but there are a few glitches e.g. the Edgware Road area.

I would just like to point out you have missed the main Stratford via Bow and the Tower Gateway branches of DLR.

Out of the obvious things (that I know well):

- Jubilee line around Baker Street is completely incorrect. Because of the need for cross-platform interchange Jubilee is actually nearly along west-east alignment there, as opposed to north-south as depicted. This also has major implications for the tunnels on both sides, as for example south of St John's Wood Jubilee heads S-S-W, does not pass under Regent's Park, and instead reaches Marylebone. South / east of Baker Street Jubilee almost reaches Great Portland street before heading towards Bond Street (so straight north-south line between Baker Street and Bond Street is incorrect).

- Waterloo & City line is incorrect, as it heads north-west from Waterloo, then has a sharp bend to the east, crosses the river only close to Blackfriars, and then runs pretty much under District for the rest of it's run.

- Jubilee south of Green Park is not nearly as straight, as that's the point where JLE tunnels diverge and there are various fairly long winding tunnel deviations there.

It is a good map, just a simplified one. And I'm pointlessly nitpicking :-)

Bakerloo is one of the worst examples of how Victorian railways were built on the cheap and opportunistically - massive bend to Regent's Park (to avoid paying for way leases under properties), massive bend to Paddington (to capture GWR traffic), massive bend to Queen's Park for an opportunity to use Watford DC lines... and final result is a twisted line that takes about 1.5 times longer to get from say Maida Vale to Waterloo than would have been directly.