1. c. 10th–16th century
    Ancient Civilizations ★★★★★ Chile (Easter Island)

    Moai

    Giant stone statues of human faces on Easter Island (Rapa Nui) in the South Pacific. About 900 exist, carved between around the 10th and 16th centuries. Thought to honor ancestors, how they were moved was long a mystery.

  2. 16th–18th century
    Ancient Civilizations ★★★★★ Southern Hemisphere

    Megallanica

    An imaginary continent covering much of the Southern Hemisphere on world maps of the 16th–18th centuries. Named after Magellan, it was shown not to exist by voyages such as Cook's.