We have explored bridge design and materials and the forces of tension and compression which work to strengthen and hold up bridges.
Take a look at these rather scary but amazing bridges.
Check out some of the longest bridges in the world.
On our City Bridges excursion, we travelled over and under many bridges by bus and also under a variety of bridges by water taxi. The oldest major bridge in the city, Princes Bridge, was built across the Yarra River in 1888.