Jay Street–MetroTech

The Jay Street–MetroTech station is a New York City Subway station complex on the IND Fulton Street, IND Culver, and BMT Fourth Avenue lines. The complex is located in the vicinity of MetroTech Center in Downtown Brooklyn. It is served by the A, F, and R trains at all times; the C train at all times except late nights; the N train during late nights only; and a few rush-hour W and trains in the peak direction.

The complex consists of two distinct, perpendicular stations. The Jay Street–Borough Hall station was built by the Independent Subway System in 1933, while the Lawrence Street–MetroTech station was built by the Brooklyn–Manhattan Transit Corporation in 1924. Despite being one block away from each other, the two stations were not connected for 77 years.

Source: Wikipedia