This is a 41 page Power Point that is a brief history high lighting the architectural devices that were developed to make buildings stronger and taller over the course of history. It covers the following architectural devices: Post & Lintel, Arch, Pointed Arch, Barrel Vault, Flying Buttress, Dome, Onion Dome, Steel Cage, Cantilever and Formed Concrete. It also shows images of some of the most famous buildings in the world including: Stone Henge, Parthenon, Colosseum, Eiffel Tower, Falling Water, and the Sydney Opera House to name a few. There are notes on each slide with fun facts about each building. There is a page that shows a picture of each architectural device to review with students. I also have an architectural device matching quiz that you can purchase separately from this Power Point if you so desire.