Cool bridges present some of the world wonders that engages students in a rigorous STEM activity which is very relevant to the community. The activity is project-based implying that each student in a group will assume a real world responsibility. Students will research, read, compile notes, create facts map, use a matrix, build a bridge manually or virtually and create a presentation. The presentation may be video recorded or teams may present in front of peers and visitors. At the end of the pr