The Commonwealth of Puerto Rico is a United States territory in the northeastern Caribbean. The capital of Puerto Rico is the city of San Juan. Approximately 395 thousand people live there, which makes it the most populous municipality of the commonwealth. The city was founded in 1521 by Spanish colonists, so it's the second oldest oldest European-established capital city in the Americas.

San Juan is a city with a great history. Its forts, which were built in the 16th and 18th centuries, are the objects of a great historical interest. The main seaport of the commonwealth is located in San Juan, as well as a lot of important cultural and economic establishments. Over 3 million tourists come to Puerto Rico every year to enjoy the city and its surrounding area, famous for splendid beaches and mysterious caves.

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