In April 1995 , federal grant money was sought to reopen the station as a branch of the New York Transit Museum , which occasionally ran tours of the station as part of its popular " Day 1 of the IRT " and " Beneath City Hall " packages . In late 1998 , due to perceived security risks in the area around City Hall after terrorist bombings in Nairobi and Dar es Salaam , the station was declared a " highly secure " area by the Giuliani administration . Plans for the museum annex were abandoned and museum tours ceased for several years
terrorist bombings in Nairobi and Dar es Salaam
1998 United States embassy bombings
City Hall station (IRT Lexington Avenue Line)