rest stop for the Underground Railroad movement; runaway slaves found sanctuary in this attic. When the air conditioning was updated in the 1990s, an issue arose in the construction of rooftop units because of the building's historical landmark status. Because of these concerns, the cooling units were installed on the side of the building. Present activity In 1988, the congregation restored the interior to its original splendor, and the former Hebrew school building that is attached, but had become dilapidated, was renovated and reopened as The Daniel Potkorony Building. The magnificent stained glass windows were recently completely recreated and renewed. See also Kossar's Bialystoker Kuchen Bakery Bugsy Siegel Memorial List of New York City Landmarks National Register of Historic Places listings in New York County, New York References Notes External links Bialystoker Synagogue of Manhattan Lower East Side Tenement Museum NYC Architecture Lower East Side History of immigration to the United States Synagogues in Manhattan New York City Designated Landmarks in Manhattan Religious organizations established in 1865 Churches completed in 1826 Polish-Jewish culture in New York City Properties of religious function on the National Register of Historic Places in Manhattan Orthodox synagogues in New York City Federal synagogues Federal architecture in New York City Methodist churches in New York City Churches in Manhattan 1865 establishments in New York (state) Synagogues on the National Register of Historic Places in New York City Methodist Episcopal churches in the United States Underground Railroad locations