The short Mikhailovskaya Street opens to the left of the Nevsky Prospekt, connecting it with the Arts Square complex, one of Saint Petersburg's finest, the work of Carlo Rossi. The buildings around the square host three museums and three theaters, including the celebrated Russian Museum, the M. Mussorgsky Maliy ("small") Opera and Ballet Theater, and the Great Hall of the D. Shostakovich Philharmonia. The complex occupies a vast area between the Griboedov Canal and the Moyka River. In the late 18th and early 19th centuries the area that is now the Arts Square Park was isolated and wooded. And in the first years of the 1800's a castle was built there for Grand Duke Mikhail, the fourth son of Paul I.