Clay Center Observatory at Dexter and Southfield School, 20 Newton St, Brookline, MA 02445, US

From its 36-acre hilltop campus on the West Roxbury border, the Dexter and Southfield schools offer students access to a wealth of academic and athletic facilities, including an astronomical observatory and science center. The Dexter School was founded in the 1920's and operated for three decades in Brookline's Longwood neighborhood before relocating to its current campus adjacent to Larz Anderson Park in 1966. In 1992, Dexter officials decided to open a second school, Southfield, for girls. The schools are separated, though they share many of the same facilities, administrators and faculty. The Dexter school has about 450 boys, while the Southfield School has about 350 girls. The Southfield School requires uniforms, though the Dexter School does not.