[NRC] rain location for photos?

Are there any NRC brides (or brides with RHs near that area) out there who are planning to take pictures at their reception hall if the weather is nice, but are looking into potential backup indoor rain locations?

I know Chelsea Mansion and Old Westbury Gardens are both near NRC, but they charge for photos. I'd like to avoid paying to reserve a backup rain location.

Anyone have any ideas?