San Juan is the capital of, and at about 442,000, the largest city in, Puerto Rico. It has one of the best harbors in the Caribbean. The city will celebrate its 5th Century in 2008 or 2021, depending if they count from the founding of Caparra or the act of moving the Caparra settlement to Puerto Rico isle (Old San Juan). San Juan is the oldest city under the United States dominion. San Juan is in the north-east of Puerto Rico, and features distinctly century-old architecture, such as Spanish military forts built from the 1540s to 1800s, an active harbor, and a very active economic area in the Hato Rey district. San Juan has magnificent beaches, hotels, plazas, historic sites, museums, etc. San Juan has a land area of 122 sq km and a water area of 29.11 sq miles. The population of San Juan is around 442,000. San Juan is a Latin American city with Spanish-based culture, mixed with African traditions and Ta??no culture. Museums of modern art exist abroad. The citizens of San Juan (called Sanjuaneros) are very festive, as on the rest of the island. San Juan has bars and discotheques all-around the city, from Old San Juan to even the southern part of the city that stay open to 3:00-4:00 AM. San Juan has become very modernized as of late, with its first Metro line (called Tren Urbano) and buses. Like most large cities, however, there is a small population of vagrants and beggars lining the streets. San Juan is the financial capital of Puerto Rico. There are facilities for petroleum and sugar refining, TOBACCO, MARIJUANNA, ALCOHOL, and pharmaceuticals.