The chief rural attraction of Philadelphia is Fairmount Park, one of the world's largest pleasure-grounds. It includes the lands bordering both sides of the Schuylkill above the city, having been primarily established to protect the water-supply. There are nearly three thousand acres in the Park, and its sloping hillsides and charming water views give it unrivalled advantages in delicious natural scenery. At the southern end is the oldest water reservoir of six acres, on top of a curious and isolated conical hill about ninety feet high, which is the "Fair Mount," giving the Park its name. The Schuylkill is dammed here to retain the water, and the Park borders the river for several miles above, and its tributary, the Wissahickon, for six miles farther. The Park road entering alongside the Fairmount hill passes a colossal equestrian statue of George Washington, and beyond a fine bronze statue of Abraham Lincoln, and also an equestrian statue of General Grant. The roadways are laid on both sides of the river at the water's edge, and also over the higher grounds at the summits of the sloping bordering hills, thus affording an almost endless change of routes and views. The frequent bridges thrown across the river, several of them carrying railroads, add to the charm. An electric railway is constructed through the more remote portions, and displays their rustic beauty to great advantage. All around this spacious Park the growing city has extended, and prosperous manufacturing suburbs spread up from the river, the chief being the carpet district of the Falls and the cotton-mills of Manayunk, the latter on the location of an old-time Indian village, whose name translated means "the place of rum." In this Park, west of the Schuylkill, was held the Centennial Exposition of 1876, and several of the buildings remain, notably the Memorial Art Gallery, now a museum, and the Horticultural Hall, where the city maintains a fine floral display. William Penn's "Letitia House," his original residence, removed from the older part of the city, now stands near the entrance to the West Park.