New York: The Novel by Edward Rutherfurd.
I read this one awhile back and just noticed it while browsing in Borders. It is a wonderful historical fiction about New York City. Follows several families across multiple generations to tell the story of NY City from Dutch days to the present.
I’ve read several novels by Edward Rutherfurd and generally they are long but quite enjoyable and are well worth the time it takes to read a longer book.
You might want to have a look at Edward Rutherfurd’s page at Amazon