Stretching across two continents, Russia, the largest country in the world, looms over the rest of Europe. A fascinating destination by any standards, Russia remains unknown and mysterious to much of the world.  Moscow’s rich history, its Kremlin and its architecture make it a must on any trip to Eastern Europe, while St Petersburg, with its colourful, crumbling Italianate mansions, beautiful canals, and cultural treasures make it the crowning jewel of the nation.