9. The Modern School
New York City was the founding place of the Ferrer Modern School of New York City. The school was founded on the principles of Francisco Ferrer, who founded the Esquela Moderna in Europe. Ferrer believed in egalitarian and accessible education and a radically leftist philosophy. The school moved through multiple locations including 6 St Marks Place in the East Village, East 12th Street, and later uptown to East 107th Street.