The Mount Washington Auto Road and the historic Mount Washington Cog Railway ascend the range's highest peak, which hosts a visitor center and weather observatory. Heavily visited Arethusa Falls, the second tallest waterfall in New Hampshire, lies on a southwest flank of Crawford Notch. The Old Man of the Mountain, a rock formation on Cannon Mountain that resembled the craggy profile of a man's face, was a White Mountain landmark until it fell in May 2003. It remains the state symbol of New Hampshire. The range also includes a natural feature dubbed The Basin, consisting of a granite bowl, in diameter, fed by a waterfall, worn smooth by the Pemigewasset River. The areas around The Basin are popular spots for swimming in the ice-cold mountain-fed water.