Russia is located in northern Asia and eastern Europe. Its capital and largest city is Moscow. The official language is Russian and the currency is the Russian ruble. To obtain a visa, travelers need a valid passport, completed visa forms, a photo, and confirmation of accommodations from a hotel or tour company. Typical Russian cuisine includes zakuski appetizers and the soup borscht. Folk dances vary by region but often involve circles, pairs or quartets. Popular tourist destinations include the lotus fields of Astrakhan, the Mir diamond mine in Yakutia, and active volcanoes in Kamchatka.