Off-setting the shortness of 11th Avenue is 10th Avenue, which runs more than 10 miles from 218th St. in Inwood to Gansevoort Street in the West Village.
Like all the other avenues west of Central Park, 10th Avenue is also known as Amsterdam Avenue north of 59th Street (except for its final stretch in Inwood between Dyckman Street and 218th Street). I'd always wondered why the West Side avenues all lost their original names above the park while the East Side avenues all retain theirs, and it turns out the answer is very simple: Real Estate Developers. As the Upper West Side began to develop in the late 1800s, the people building and selling housing didn't want the new addresses to be associated with the tenements and factories to the south, so 8th Avenue became Central Park West, 9th Avenue became Columbus, 10th Avenue became Amsterdam, and 11th Avenue became West End.
10th Avenue runs through a number of neighborhoods and historical sites, but I've written about most of them before, so here are some pictures.