This one of the prettiest parks in Moscow. Even though it's a bit outside the city center, you can easily reach it by metro or even by bike. There are beautiful ancient churches and a replica of Peter the Great's summer palace, which is now a museum.
But besides the impressive buildings the most interesting part of this park is it's beauty, it's tranquility and the view on Moscow. In winter it's even more special and ferry-tale like.
http://www.moscow.info/parks/kolomenskoe-park.aspx
Location: Kolomenskaya metro (10 min walk)
Photo credits: Wikipedia, Pinterest & Depositphoto's