London: a world city

• London is one of the world's leading financial centres and is the headquarters for Barclays and Natwest.
• London is a world cultural capital and the most visited city in the world.
• London has the world's largest city airport system and is the home of Heathrow, the world's busiest airport.
• London contains the largest concentration of higher education institutions in Europe.
• London has hosted the modern summer Olympics three times.
• London is the most populous municipality in Europe and contains 4 World Heritage Sites.