Fodor's Expert Review Lowell Observatory

In 1894 Boston businessman, author, and scientist Percival Lowell founded this observatory from which he studied Mars. His theories of the existence of a ninth planet sowed the seeds for the discovery of Pluto at Lowell in 1930 by Clyde Tombaugh. The 6,500-square-foot Steele Visitor Center hosts exhibits and lectures and has a stellar gift shop. Several interactive exhibits—among them Pluto Walk, a scale model of the solar system—appeal to children. Visitors can peer through several telescopes at the Giovale Open Deck Observatory, including the 24-inch Clark telescope and the McAllister, a 16-inch reflector telescope. The observatory is open and unheated, so dress for the outdoors.