I walked across the Brooklyn Bridge. This bridge was built 136 years ago. The man who built it got his foot crushed and his toes had to be removed. This sounds horrible but then his body got sick from an infection in his blood and he ended up dying. After he died, his son took over the bridge building work but he got very, very sick from working on the columns that go under water and he was no longer able to do the work. So his wife studied architecture and math and took it over!