in a cinderblock wall. As late as 1951, the mainline and relay tracks were still planned to be extended as far as 105th Street (the modern location of Aqueduct Racetrack), with a connection to the then-recently abandoned Rockaway Beach Branch of the Long Island Rail Road east of Cross Bay Boulevard. The extension of the subway, however, was never built; instead the line was connected to the former Fulton Street elevated on Liberty Avenue and the former LIRR Rockaway branch (now the IND Rockaway Line), both via the Grant Avenue station, which opened in 1956. Rumors that the proposed station was actually constructed, at least partially, are prevalent. Evidence supporting the existence of the station includes the signal board, the cinderblock wall at the end of the tunnel (cinderblock, brick, and wooden partitions are used in other parts of the subway to seal potential expansion sites) and several signals for trains running from the station into Euclid Avenue facing the wall, including one directly in front of the wall. On online transit forums, such as the website SubChat, some have claimed to have known people who have seen the station. The New York Times, referring to the rumor as the "transit Atlantis", has likened it to the Roswell UFO incident or the Kennedy assassination conspiracy theories. Steve Krokowski, a retired transit worker and police officer, was quoted by the Times in reference to the station, mentioning: The taped-over portion of the signal board which covers a label for the 76th Street station. (This control board actually exists, and has indeed been taped over.) The remnants of the Pitkin Yard leads that head northeast and then stop near the aforementioned cinder-block wall. Krokowski tried to dig under the wall, and found a track tie, but stopped when the hole caved in. A retired police officer claimed that the cinder-block wall previously had a door, and that in the 1960s he walked through it, and saw a station complete with everything except for turnstiles and token booths. Other "colleagues", all supposedly dead, also claimed to have seen the station, though whether anyone else actually made such claims is unknown. However, there is also significant evidence against the existence of the station, including a lack of newspaper coverage, the lack of subway infrastructure such as ventilation grates or skylights on Pitkin Avenue in the area, and the absence of documentation of the work