Somes up London completely: "As the sun sets over the British Empire, London in particular, clubs from Soho to Central London and Whitechapel fill with revellers. The old saying is that, at night London comes alive while the rest of England sleeps. Typically, the sweet smell of hashish, marijuana and other soft drugs fill the night air. There are other, harder drugs available, if one so chooses to seek them out."

http://www.webehigh.com/city/detail.php?CITYID=London