The Smithsonian Castle is easy to pick out on the National Mall ​ — the mile - long [1.5 km] green swath with the Capitol at one end and the Washington Monument at the other.
Ejot pa pusotru kilometru garo Nacionālo aleju, kas ved no Kapitolija līdz Vašingtona piemineklim, nav grūti pamanīt Smitsona institūta centrālo ēku — Smitsona pili.