RORY: Where you going?
RORY: I thought we were gonna walk.
JESS: It’s fifteen blocks. Come on, I think you’ll like it.
The New York City Subway System is a rapid transit system owned by the government of New York and leased to the New York City Transit Authority. It opened in 1904, and is one of the world’s oldest public transport systems, one of the most used, and the one with the most stations, with 472 in operation. Stations are located throughout the boroughs of Manhattan, Brooklyn, Queens, and The Bronx.
There is/was a concentration of record stores in the East Village, and the one that Jess takes Rory to could very well be located in this area. If they caught the subway near Washington Square, and got off at the Bleeker Street, Broadway-Lafayette Street, or Second Avenue subway station, that would take them around fifteen blocks into the East Village, saving them about 25 minutes of walking.
It’s amusing that Rory is so prepared to walk for another half hour or so – she’s already had a long walk to get to the park! You’d think she’d be glad to catch the subway.