I'm not very fond of the Underground because it's overly congested, can get hot and is a little claustrophobic. There is one upside that doesn't often get mentioned and that is the advertising. The poster advertising including the cross tracks are often unseen above ground and don't seem to get mentioned all that much. I love the simplicity of this execution advertising the V&A's Ice Station Antarctica Exhibition.
I also really like this campaign for a new type of Barclay Card that is a credit, debit and Oyster Card which is a cashless card first inspired in places like Hong Kong and Singapore. 
The £800 million launch of the St. Pancras Station refit with its new Eurostar trains cutting the time from London to Brussells down to 1 hour and 50 minutes is also being advertised above ground.
