Я Написать 3 предложения с придаточным условия и времени​

1.It is one of the most famous squares of the world.We can see the Lenin's Tomb, St. Basil Cathedral, the State Historical Museum  and the Kremlin.
2. Grand Peterhof Palace, Grand Cascade 
3. The Hermitage, the Russian Museum 
4. Alexander's Garden 
5. The Bolshoy Theatre 
6. The Mariinsky Theatre 
7. The Armoury Chamber showcases ancient state regalia, ceremonial tsar’s vestments and coronation dress, vestments of the Russian Orthodox Church’es hierarchs, the largest collection of gold and silverware by Russian craftsmen, West European artistic silver, ceremonial weapons and arms, carriages, horse ceremonial harness.