Adoration of the Magi:1
Alarm Clock:0
Alberti, Leon Battista:1
Anatomy:1
Annunciation, The - 1473:1
Annunciation, The - 1476:0
Architects:1
Arno River:1
Arno Valley:1
Artillery Shell:0
Artists:1
Backwards "secret" writing:1
Ball Bearings:1
Baptism of Christ:1
Baroncelli, Bernardo:1
Battle of Anghiari:1
Bell:1
Bell-Tower Mechanism:1
Bicycle:1
Black Plague:1
Bobbin Threader:1
Bomb:1
Bosch, Hieronymus:1
Botticelli, Sandro:0
Bramante, Donato:1
Bridge Canal:1
Cabot, John:1
Calvin, John:1
Cannon:1
City-state:1
Codex Arundel:0
Codex Atlanticus:1
Codex Forster:0
Codex Madrid I:0
Codex Madrid II:0
Columbus, Christopher:1
Constantinople:1
Copernicus, Nicolaus:1
Cortés, Hernán:1
Court Entertainer:0
Crossbow:1
Dante:1
Deluge, The:0
Digging:1
Diving Suit:1
Drawbridge:1
Drawing Compasses:1
Dredger:1
Drill:1
Drums I:1
Drums II:1
Drums III:1
Elizabeth I:1
Feudal system:0
File Maker:1
Florence:1
Fortress:1
Francis I:1
Galileo Galilei:1
Gama, Vasco da:1
Grotesque Heads:1
Gun:1
Gutenberg, Johannes:1
Helicopter:1
Henry VIII:1
Horse, The:1
Hundred Years' War:1
Imola, Map of:0
Isabella d'Este:1
Italy:1
Ivan III:1
Joan of Arc:1
Joint:1
La Belle Ferroniere:1
Lady with an Ermine:1
Landing Gear:1
Last Supper, The:1
Leda and the Swan:1
Life Preserver:1
Lifting:1
Lorenzo the Magnificent:1
Luther, Martin:1
Machiavelli, Niccolò:1
Madonna Benois:1
Madonna with the Flower:1
Madonna with Yarn-Winder:0
Magellan, Ferdinand:1
Medici:0
Medici, Giuliano de:1
Metal Roller:1
Michelangelo:1
Middle Ages:1
Milan:1
Missile:1
Mona Lisa:1
Nostradamus:1
Oil paints:1
Paddle Boat:1
Parachute:1
Pedal-Powered Wing:1
Pedometer:1
Portrait of a Musician:1
Portrait of Ginevra Benci:1
Raphael:1
Reciprocating-to-Rotary:1
Recorder:1
Release Mechanism:1
Renaissance:1
Rocket:1
Rotisserie:1
Screw-Making Machine:1
Self-Portrait:1
Sforza, Lodovico:0
Shakespeare, William:1
Shearing Machine:1
Snorkel:1
Spanish Inquisition:1
Spotlight:1
St. Jerome:1
St. John the Baptist:1
Steam Cannon:1
Suleiman the Magnificent:1
Tank:1
Verrocchio, Andrea:1
Viola-Organista:1
Virgin & Child with St. Anne     - cartoon:1
Virgin & Child with St. Anne     - painting:1
Virgin of the Rocks - 1483:1
Virgin of the Rocks - 1494:1
Walking Buoys:1
Walls and Ladders:1
War of the Roses:1
Wheel Lock:1
Windlass:1
Windsor Collection:0
Wood Planer:1
Woodwind Keys:1
Workshop:1
Worm Gear:1