A few yards away from the banks of the Delaware River in Trenton’s Stacy Park is a bridge so short it hardly serves a purpose. But don’t judge the bridge’s merit by its size. It’s the work of John A. Roebling, the civil engineer who built the iconic Brooklyn Bridge. This little New Jersey bridge was built by Roebling as part of a demonstration project in the 19th century and later gifted to Trenton. It’s said that the structure is modeled on his Niagara Falls Bridge. Named lately as the “Shaky Bridge,” based on the fact that the wooden planks shake back and forth as you traverse the roughly 20-foot span.