What is the Capital of United Kingdom?

The capital of United Kingdom is London, which was founded 50 AD. London has been the capital since 1801.

London is the largest city in United Kingdom and Houses the Palace of Westminster

London is located at 51.5074° N, 0.1278° W at an elevation of 26'.

London Bridge, London, England

Source: https://flic.kr/p/cEV5e5