- Russian Empire (Wikivoyage)
The Russian Empire (Российская Империя) was the largest contiguous country in modern times, and the predecessor of the Soviet Union and present-day Russia. Reaching its maximum size during the mid-19th century, it included much of east and central Europe (including Finland and Poland), all of Siberia, much of Central Asia, briefly Alaska and even Fort Ross as far south as present-day California, though the degree of actual control by the tsarist authorities usually declined quite notably going from west to east. It also had a few concessions in China. Throughout world history, only the Mongol Empire and the British Empire have possessed a larger land area than Imperial Russia.