Open House New York, www.ohny.com, has three locations here in Hudson Heights.
The Little Red Lighthouse will be open to the public from 12-4 p.m.
The Fort Tryon Park cottage will be open from 10 a.m. to 2 p.m.
And the George Washington Bridge Bus Terminal will conduct a tour at 3 p.m.
This nonprofit sponsors an "open house" weekend each year, which allows New Yorkers to access historic buildings, private homes and public buildings that would otherwise be off-limits. Some tours may require reservations.