If Jay Lake has already posted this, my apologies, but it seemed to good to comment on.
A German company (Deutsche Zeppelin Reederei) is offering airship rides over London. The Zeppelin NT airship “Star over London” can carry 12 passengers and is based at Damyns Hall airfield in Upminster. The tickets are quite expensive: £185 for a half-hour flight to £360 for an hour-long trip. But people, you can fly in an airship! How cool is that?