Located in the southeast of England, on the River Thames, it is the capital of the United Kingdom and has been the heart of its political, cultural and business life for centuries. The now sprawling metropolis is a far cry from the scrabble of dwellings that first sprouted up to house river traders during their voyages towards the sea. It was the Romans who really kick-started the city, by establishing ‘Londinium’ as an important fortress town, guarding the Thames and protecting against any Celtic tribes trying to invade the then untamed island.