Which country appears to have claimed the most territory in the New World at first?

Spain appears to have claimed the most territory in the New World at first, establishing vast colonies throughout Central and South America, as well as parts of North America. Following Christopher Columbus's voyages in the late 15th century, Spain rapidly expanded its influence, claiming large areas for the Spanish Crown. The Treaty of Tordesillas in 1494 further solidified Spain's territorial claims, dividing the New World with Portugal. This dominance lasted for several centuries, shaping the cultural and political landscape of the Americas.