5 different open-ended building challenges: Great Wall of China, Egyptian Pyramid, Roman Colosseum, the Parthenon (Greece), and the Djinguereber Mosque of Timbuktu (Mali).Activities align with Virginia Social Studies SOLs 3.7 and 3.8. Challenges are designed for collaborative learning- groups of 3-4 students are ideal.Challenges can be completed with any building tool, such as Legos or Keva Planks.These challenges can be used in a variety of ways, including indoor recess, Makerspace Stations, an