One of the things I used to like to do when I lived in Maryland in the 1970's was take the bus down into D.C. and see the Smithsonian and other interesting places. One of these places
was Dumbarton Oaks which is a former mansion in Georgetown and has wonderful works of art:
I'm reading a free PDF book that talks about the Olmec artwork at Dumbarton Oaks:
http://www.doaks.org/resources/publication...-dumbarton-oaks