Please improve the grammaticallity of the following paragraph
It's not so hard to find sights to see in such a big city like Moscow, but when you have a wide variety of museums, parks, clubs, you will try to visit only best ones.
It's not so hard to find sights to see in such a big city as Moscow, but when you have a wide variety of museums, parks, and clubs, you will try to visit only the best ones.