The courtyard of Chinatown gallery Lyles & King is a brick-and-concrete panopticon of apartment windows looming five stories high. AC units pump stifling exhaust into the air, combatting a July in which global heat records were set. But the machines’ buzzing is broken by a babble of cool water, which streams from a spout-like branch in the face of an anthropomorphic tree. It is the centerpiece of Kathy Ruttenberg’s fountain installation, which turns this glorified air shaft into a paradise garden.