Hello how may I help you? Help me please. I need some info about Prague. Hello? Prague is the capital and largest city in the Czech Republic, the 14th largest city in the European Union and also the historical capital of Bohemia. There is a river that runs through Prague. What is the name of the river? Vtalva River Great, I thought that was the name. How long is the river? It's 200 km long OK, that's all I need. What other information do you need? Nothing, thanks. Goodbye! Have a Good Day