STEM—Famous Engineering Structure Posters, Montessori 3-Part Cards, Trading Cards and Google Earth Activity Introduce your preschool—elementary students to the world of Engineering through this interactive STEM activity! Thirty famous engineering structures are included with a photo, a brief history of the construction (engineering), it’s location on the globe (science), a link to an informational video (technology), and a longitude and latitude activity using Google Earth (math and technology).