1. GREAT Britain
2. Yes very powerful and famous.
3. Britain has a lot of History. Monarch is very famous. Once had the bigggest empire of all time, about a fifth of the World's land. A lot of landmarks such as Stonehenge, St Paul's Cathedral etc. Many churches, castles and pubs 
Home to many great sports including Football, Cricket, Rugby, Tennis etc.
Famous Scientists - Newton, Darwin, Hawking, Maxwell, Dirac, Faraday, Franklin
Music - The Beatles, Rolling Stones, Led Zeppelin, Pink Floyd, The Who, The Kinks, AC/DC, Cream, Eric Clapton, Sex Pistols, The Clash, The Stone Roses, Oasis, Blur, Radiohead, Muse, The Libertines.
Game Developers: Naughty Dog - Crash, Jak and Daxter, Uncharted.
Cars - Aston Martin, Jaguar, Rolls Royce, Bentley, TVR, Morris Minor, Mini Cooper.
Capital - London. Finacial Capital of the World. Most multi-cultural city in the world.
4. No.