The Museum of the City of New York’s Above Ground: Martin Wong Graffiti Collection exhibit recaptures the city’s graffiti movement during the ‘70s and ‘80s. It will be open until October 5, 2025. Graffiti has become a well-known cultural artifact of New York City, but its vibrant, rebellious, loud nature would never exist if it weren’t for the teenagers who started writing out their names on walls never meant for them. Writing that the city spent over $300 million in trying to cover up.