You may see Cathedral of the Nativity of Christ in the skyline before you actually find this important building. Step inside if it's open or just admire the facade from outside.
You'll soon learn why this Mytishchi principal church is visited by many travelers. If you're looking for more to see and do here, Hanoi Moscow, Pirogovo Golf Club, and Bukhta Radosti are in the area too. They won't take you very long to reach from Cathedral of the Nativity of Christ.