The 6 subway line is a rapid transit line in the New York City Subway system. It runs from Pelham Bay Park in the Bronx to Brooklyn Bridge–City Hall in Manhattan, covering a distance of approximately 13.5 miles. The line primarily operates along the Lexington Avenue corridor, making it one of the busiest lines in the system. The 6 line is identified by its green color on subway maps and serves 38 stations. It connects various neighborhoods, including East Harlem, Union Square, and Chinatown, providing essential transportation for commuters and residents throughout the city.