Where is Castellano spoken?

Castellano, more commonly known as Spanish, is spoken in a wide range of countries and regions around the world. Here's a breakdown:

Countries where Spanish is an official language:

* Latin America: Argentina, Bolivia, Chile, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Honduras, Mexico, Nicaragua, Panama, Paraguay, Peru, Uruguay, Venezuela.

* Europe: Spain

* Africa: Equatorial Guinea

Other territories where Spanish is spoken:

* United States: Puerto Rico, the U.S. Virgin Islands, and significant portions of the population in Florida, New York, California, Texas, and other states.

* Other countries: There are large Spanish-speaking communities in many other countries, including Andorra, Belize, Gibraltar, the Philippines, and parts of the Caribbean.

Spanish is the second most spoken language in the world, with over 500 million native speakers. It's also a widely studied language, making it a valuable asset in a globalized world.