River Valleys and First Cities 1
Classical Worlds 1
Modern Heritage 3

Antikythera Gear Train
Greece · Puzzles and mind games
Euclid's Ruler and Compass
Greece · Puzzles and mind games
Living Traditions 3

Bouzouki Strum
Greece · Musical instruments
Dry Stone Wall Builder
Croatia +4 · Crafts and making
Santur Hammer Strings
Iran +3 · Musical instruments
