Stretching north of 123rd street to 155th street and straddling the Hudson River and St Nicholas Avenue, West Harlem comprises of Hamilton Heights, Sugar Hill and Manhattanville. The neighborhood has witnessed some dilution in the African American majority with the influx of more white and Hispanic residents. Harlem has experienced gentrification on and off for many decades now. Crime rates are still high and active measures are being taken to tackle them. Unemployment and mortality rates surge in Harlem. However, recent developments in real estate and Columbia’s expansion plans offer hope to the area. Culturally, Harlem isn’t a sordid story at all. The culture of the African diaspora is widely celebrated here. Moreover, Harlem is the birthplace of many hip-hop dance styles. To facilitate transportation, the neighborhood is well connected via Subway lines 1, A, C.