Answer: The London Stock Exchange
The London Stock Exchange is a stock exchange located in the City of London, London, United Kingdom. As of August 2010, the Exchange had a market capitalisation of US$2.63 trillion, making it the fourth largest stock exchange in the world and the largest in Europe.
The Exchange was founded in 1801 and its current premises are situated in Paternoster Square close to St Paul's Cathedral in the City of London. The Exchange is part of the London Stock Exchange Group.
