Moscow is designated as a city.
A capital city ( or simply capital ) is the municipality exercising primary status in a country , state , province , or other region , usually as its seat of government . Moscow . With over 40 percent of its territory covered by greenery , it is one of the greenest capitals and major cities in Europe and the world , having the largest forest in an urban area within its borders -- more than any other major city -- even before its expansion in 2012 .