Great for afternoon shots of blossoms on the grounds, particularly the eastern side (facing the Supreme Court) and the nearby National Arboretum. Tripods require a permit at the Capitol.
Dumbarton Oaks Park (doaks.org) is an often-overlooked gem of cherry blossom photo ops.
The Tidal Basin
The most iconic vista, with vantage points of the Jefferson Memorial and Washington Monument. Arrive early morning; for parking on the west side, Santos suggests entering on Ohio Drive and parking near the FDR memorial. For head-on shots of Jefferson Memorial, visit the eastern side.
Arrive in the morning or afternoon to shoot the grove of cherry blossoms. Shoot upward toward the monument, as close as possible.