Who did Spain send to explore the Americas?

Spain sent many explorers to the Americas, including:

* Christopher Columbus

* Ferdinand Magellan

* Vasco Núñez de Balboa

* Juan Ponce de León

* Hernando de Soto

* Francisco Vásquez de Coronado

* Álvar Núñez Cabeza de Vaca

* Pedro Menéndez de Avilés