The Old Allenstown Meeting House in Allenstown, New Hampshire lies adjacent to Bear Brook State Park on Deerfield Road. The meeting house has a unique slanted floor directing views towards the pulpit. The building was built in 1815 and was used for both religious and town business. The building makes for an interesting stop when visiting Bear Brook State Park for its architecture and history. It is located across the road from the entrance to the park museum complex.