New Haven was founded in 1637 by affluent puritans. Shipping and manufacturing were the mainstays upon which the economy was built, however the focal point of New Haven is Yale University, a world-famous university founded in 1716. The university grounds are located in the heart of New Haven. Gothic buildings on campus stand as sturdy sentinels from the past creating a steadying influence accompanied by a certain mystique. The Harkness Tower sings out at different times of day, filling the surrounding air with its carillon song—a sound that has called out to people for centuries. Handsome churches enfold the area. Several art museums with famous collections are on or near campus, while the Peabody Museum of Natural History is also located in the area. Each June, the International Festival of Arts & Ideas brings world-class art exhibits, preformances and thinkers from around the world together.