7. Celebrate George Washington at The Revolutionary War Plaque

Columbia University’s math building, located around 118th and Broadway, is adorned with a plaque that commemorates the Revolutionary War battle that took place at the university. Columbia was the location of the Battle of Harlem Heights in 1776. After the British defeat and retreat from Long Island, George Washington led outnumbered American troops to a victory over advancing British forces. The battle was the first victory of the New York campaign, and offered a critical boost in American morale.