Panama City - photograph the Bridge of the Americas
The Bridge of the Americas connects North and South America. It is part of the Interamerican Highway, that passes over the Panama Canal. Taking 3 years to complete, the bridge replaced the ferry that used to transport vehicles across the canal, and remnants of the ferry docks can still be seen. The best place to photograph the bridge, and hopefully the boats passing under it, is on the El Amador side, which was once an American military base.