1 Puerto Rico is a Caribbean Island that belongs to the United States. It is a US territory, so it has different rights and rules than a US state has.
2 It's a tourist paradise with warm, sunny beaches, diving, snorkelling, spelunking and searching for pirate treasure among its main attractions.
3 The capital is San Juan.
4 It used to belong to the Spanish, who lost it in the Spanish-American war. So most people here speak Spanish.
5 Ships bringing goods from Central and South America, Africa and Europe have to unload their goods in the United States. They are not allowed to stop in Puerto Rico.