Christopher Columbus was an Italian explorer who completed four voyages across the Atlantic Ocean, under the patronage of the Spanish King and Queen, intending to find a new route to Asia. He made landfall in the Bahamas in 1492, and his explorations opened the way for the widespread European exploration and colonization of the Americas.

Vasco Nunez de Balboa was a Spanish explorer, governor, and conquistador. He is best known for leading the first European expedition to reach the Pacific Ocean from the Atlantic.

Ferdinand Magellan was a Portuguese explorer who led the first expedition to circumnavigate the globe. He set sail from Spain in 1519 with five ships, and after a treacherous journey, his crew became the first to successfully complete a circumnavigation of the world.

Roald Amundsen was a Norwegian explorer who led the first expedition to successfully navigate the Northwest Passage, a sea route connecting the Atlantic and Pacific Oceans through the Arctic Archipelago.

Roald Amundsen was a Norwegian explorer who led the first expedition to reach the South Pole. He and his team arrived at the pole on December 14, 1911, just weeks ahead of a British expedition led by Robert Falcon Scott.

John Speke was a British explorer who discovered the source of the Nile River. He reached Lake Victoria in 1858 and correctly identified it as the source of the Nile.

Edmund Hillary was a New Zealand mountaineer who, along with Tenzing Norgay, became the first person to reach the summit of Mount Everest, the highest mountain in the world.

Hiram Bingham was an American historian and explorer who discovered the lost city of Machu Picchu in 1911. Machu Picchu is an ancient city built by the Incas in the 15th century and is considered one of the most important archaeological sites in the world.

Robert Peary was an American explorer who led the first expedition to reach the North Pole. He and his team reached the pole on April 6, 1909.

Howard Carter was a British archaeologist who discovered the tomb of Tutankhamun in 1922. Tutankhamun was an Egyptian pharaoh who died in 1324 BC, and his tomb was filled with a vast array of treasures.

Charles Lindbergh was an American pilot who made the first solo transatlantic flight in 1927. He flew from New York to Paris in a plane called the Spirit of St. Louis.

Heinrich Schliemann was a German archaeologist who discovered the ruins of the ancient city of Troy in 1871. Troy was a city mentioned in Homer's Iliad and Odyssey, and its discovery was a major archaeological breakthrough.

Achille Compagnoni was an Italian mountaineer who, along with Lino Lacedelli, became the first person to reach the summit of K2, the second highest mountain in the world, in 1954.

Robert Ballard was an American oceanographer who discovered the remains of the Titanic in 1985. The Titanic was a British passenger liner that sank in the North Atlantic Ocean in 1912 after striking an iceberg.

Will Steger was a Canadian explorer who led the first expedition to walk to the North Pole in 1986. He and his team covered over 600 miles on foot and skis to reach the pole.