Salzburg lies on the Austria-Germany border and is most easily reached by air via Munich Airport and the highly efficient rail lines. While summers are warm and inviting, the city is also beautiful and easy to explore under a blanket of snow. The old town is compact and best seen by foot. Rooms are hard to come by during the Salzburg Festival, so booking well in advance of late-summer visits is advised. Power in continental Europe is 220 volts, so visitors from North America will need a plug adapter and possibly a power converter. (Most electronics will do just fine with only the former.) Visas are not required for stays of less than three months. The official language is German and the currency is the euro.