Best monument on a harbor island
Situated in New York Harbor, the Statue of Liberty (top) is one of the most famous monuments in the world. Deer Island (bottom) in Boston Harbor is home to a $3.8 billion dollar sewage treatment plant. On the surface this is a win for New York. Dig a little deeper and Lady Liberty's just going to stand there and rust, while the Deer Island plant has transformed Boston Harbor into one of the cleanest urban waterways in the nation. Be a little more realistic, and New York wins this in a landslide.