New York Maps and Images

State Maps

County Maps

Regional Maps (incl. Mountains, Rivers, Long Island, etc.)

Nautical Charts

Topographic Maps

Transit Maps

Railroad Maps

City & Town Maps

Bird's Eye Views

Neighborhood Maps

Postcards

New York City:
Brooklyn - All
Brooklyn - Whole Borough Maps 
Manhattan - All
Manhattan - Whole Borough Maps
Staten Island
The Bronx - All
The Bronx - Whole Borough Maps
Transit Maps (includes all of NY state)

Atlases of Maps:
Adirondack Survey, Seventh Report 1879
Albany 1876
Binghamton 1885
Long Island 1873
Niagara Falls, North Tonawanda, and Buffalo 1893
New York City 1885 (Robinson & Pidgeon)
New York City: The Bronx (Sections 9 and 10) 1904
New York City: The Bronx (Annexed District) 1913
New York City: The Bronx (Sections 9-13) 1921
New York City: The Bronx (Sections 9-13) 1928
New York City: Brooklyn 1880 (Bromley & Robinson)
New York City: Brooklyn Vol. 1, 1880 (Hopkins)
New York City: Brooklyn Vols. 5-6, 1880
New York City: Brooklyn 1886 (Robinson & Pidgeon)
New York City: Brooklyn Vol. 2, 1904
New York City: Brooklyn Vol. 2, 1907
New York City: Brooklyn Vol. 1, 1908
New York City: Vol. 3 (Manhattan), 1883 (Robinson)
New York City: Vol. 2 (Manhattan), 1884 (Robinson)
New York City: Manhattan 1908
New York City: Manhattan Vol. 4, 1914
New York City: Manhattan Vol. 1, 1922
New York City: Manhattan Vol. 1, 1922 (1935)
New York City: Manhattan 1925 (Desk Atlas)
New York City: Manhattan Vol. 3, 1921
New York City: Manhattan Vol. 2, 1928
New York City: Manhattan Vol. 1, 1931 (1984)
New York City: Manhattan 1955 (1975) (Desk Atlas)
New York City: Staten Island Vol. 1, 1917
New York State 1829-1832
New York State 1870
Rochester 1875
Rochester 1910
Rochester 1918
Syracuse 1924
Westchester County 1901
Westchester County, Vol. 1, 1910
Westchester County, Vol. 2, 1909
Westchester County, Vol. 2, 1911