Private Swap - USA

The Delaware Memorial Bridge is a set of twin suspension bridges crossing the Delaware River. The bridge was designed by the firm known today as HNTB with consulting help from famous engineer Othmar Ammann. The bridges are dedicated to those from both New Jersey and Delaware who died in World War II, the Korean War and the Vietnam War. On the Delaware side of the bridge is a War Memorial, visible from the northbound side lanes. (source)

The Chesapeake Bay Bridge is a major dual-span bridge in the U.S. state of Maryland. The original span opened in 1952 and at the time, with a length of 4.3 miles (7 km), was the world's longest continuous over-water steel structure. The parallel span was added in 1973. The bridge is officially named the William Preston Lane, Jr. Memorial Bridge after William Preston Lane, Jr. who, as governor of Maryland, initiated its construction. (source) Thank you Elizabeth for these great cards!