Tower Bridge in London against blue sky. Britain; London; River; Thames; UK; architecture; attraction; beautiful; blue; bridge; british; building; business; capital; city; cityscape; day; destinations; england; english; europe; european; famous; history; iconic; kingdom; landmark; monument; place; sightseeing; sky; skyline; skyscraper; suspension; symbol; tourism; tourist; touristic; tower; tower bridge; transportation; travel; urban; water;