It goes without saying that New York City is chock full of amazing buildings and spaces. And many of them aren't normally open to the public. But this weekend you can visit over 100 places throughout the five boroughs, free of charge, during the Second Annual Open House New York.

From self-guided tours to discussions with designers, OHNY offers a rare glimpse into your fair city. Detailed information about each site - day(s) of participation, opening times, travel directions, etc. - are listed online. Alternately, you can pick up printed guides at the following locations:

The Center for Architecture, 536 LaGuardia Place
Cooper-Hewitt, National Design Museum, 2 91st Street
Grand Central Partnership, Info Booth, Grand Central Terminal
Municipal Art Society, 457 Madison Avenue
NYC & Company Visitors' Center, 810 Seventh Avenue
Wall Street Rising, 25 Broad Street

OHNY organizers recommend you bring a good street map and comfortable footwear. Gothamist would like to remind you to check the weekend subway summary, as we had some difficulty last year getting to Green Wood Cemetery in Brooklyn. Of course you may want to bring a camera. Whether you're a photographer, photoblogger, or just toting a camera around with you this weekend, you can enter your masterpiece snapshots the OHNY Weekend photo competition. Details available here.

Our recommendations from last year's excursion include the Little Red Lighthouse, Jefferson Market Library, and High Bridge Water Tower, all in Manhattan. This year, we are getting up bright and early Saturday to see the Astoria Pool in Queens.