* Gold and other precious metals: Columbus and his crew brought back a large amount of gold, silver, and other precious metals from the Americas. This wealth helped to fund Spain's exploration of the New World and to make it a major power in Europe.
* Plants and animals: Columbus also brought back a variety of plants and animals from the Americas, including corn, potatoes, tomatoes, and tobacco. These plants and animals had a profound impact on European cuisine and agriculture.
* Knowledge: Columbus and his crew also brought back a great deal of knowledge about the Americas, including information about the geography, the people, and the cultures of the region. This knowledge helped to Europeans to understand the New World and to develop a more accurate map of the world.
* Slaves: Columbus and his crew also brought back a number of slaves from the Americas. These slaves were used to work in the mines and plantations of the New World.
Columbus's voyages to the Americas had a profound impact on both Spain and the world. They brought Spain a great deal of wealth and power, and they also introduced Europeans to a new world of plants, animals, and cultures. Columbus's voyages also helped to set the stage for the European colonization of the Americas.