use the defenite article with the geographical names where nacessary .Remember the general rule of using articles with them .
1... Great Britain
2... Baltic Sea
3... Atlantic Ocean
4... Mockva River
5... Lake Ontario
6... Red Square
7... USA
8... Urals
9... Madrid
10... Europe
11... France
12... Royal Hotel
13... Tverskaya Street
14... Hyde Park
15... Bolshoi Opera House
16... Kosmos Cinema
17... Tretyakov Gallery
18... History Museum