Today is Columbus Day, which means that your employer is probably not giving you the day off (according to the Society for Human Resources Management) but many government offices and schools are closed. The stock market is open, some banks are closed while others are open, and alternate side of the street parking is suspended. Here's a list of closures, but this sort-of-holiday is confusing. And, of course, there is steady opposition to Columbus Day overall.
There is a Columbus Day Parade, which begins at 11:30AM, running on Fifth Avenue between 44th and 79th Streets. Here's more information from the Columbus Citizens Foundation.
Do you have Columbus Day off? And the History Channel is airing Columbus Day programs - the one at 9PM is about his 1502 trip trying to find a passage to the East (he failed).