 The Seneca Schoolhouse, a small one-room schoolhouse of red sandstone, was built in Poolesville in 1866 to educate the children of the stone cutters who worked at the Seneca Quarry.Operating as the Seneca Schoolhouse Museum, it provides tours to schoolchildren so that they can experience a typical school day as it would have been on March 13, 1880.The Kunzang Palyul Choling Buddhist temple opened in Poolesville in 1985.