One of the first islands visited by Columbus in 1493, Puerto Rico has long been an important part of Caribbean history, inspiring artists, writers and revolutionaries. The many centuries of history can be seen in the city of Old San Juan, where Spanish traditions are still very much alive. Open air markets, music and dancing fill the streets, day or night. Life is more laid back on the surrounding islands that make up the Commonwealth of Puerto Rico, and nightlife is virtually non-existent, but there is always plenty to see and do in the nation that made salsa dancing popular around the world.