Interactive Map Compares NYC of 1836 to Today

Smithsonian Magazine provides archival maps from the David Rumsey Map Collection overlaid with current aerial photography.

http://www.smithsonianmag.com/history-archaeology/This_Interactive_Map_Compares_the_New_York_City_of_1836_to_Today.html

See also:

• Chicago before the Great Fire (1868)
• Denver (1879)
• Los Angles (1880)
• San Francisco (1859)
• Washington DC Lincoln Memorial (1851)