With over 14 million sq ft of office space and some of the UK's tallest buildings, it's no surprise that the Docklands area has become London's second biggest financial district. Many of the UK's largest financial institutions, along with others in the service industry, have offices here and as a result a wide array of bars, restaurants and shops have moved in. If you want a cheap alternative to The City with everything you need on your doorstep, this might be the answer for you.