Perhaps best known throughout the nation for one of his works in Washington – the Franklin Delano Roosevelt Memorial, located along the Tidal Basin – Bay Area landscape architect Lawrence Halprin died on Sunday of natural causes. The FDR Memorial features one of Halprin’s boldest waterfall elements, a major feature for which his work was known. Fittingly, Halprin also believed that the well-loved FDR Memorial best represented his accomplishments. For those who have never…