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% replaces any number of letters (la% - lake, lamp)_ replaces one letter (ca_ - car, cat)

Crossword clues for D.C. landmark (with "The") 11 letters:

SMITHSONIAN: D.C. landmark (with "The")
FBIBUILDING: D.C. landmark blown up in the movie "Arlington Road"
MLK: _____ Memorial (D.C. landmark with the Stone of Hope statue)
MEMORIAL: Many a D.C. landmark
JFFRSNMMRL: D.C. landmark whose interior walls contain excerpts from the Declaration of Independence
LIN: Architect of a noted D.C. landmark