:how many countries are in the uk? what are they? what are the main rivers and lakes? what other places do you know?

2.There are three main rivers and lakes in the UK: the river Thames ,Severn, 
Mersey.
3. In the UK I know places such as: tower of London, big Ben, Westminster Palace, Buckingham Palace, the London eye and the White tower.
1. There are 4 countries in the UK. Scotland, Ireland, Wales, England