This delightful project was gleaned from Art Projects for Kids. She has an amazing collection of sketches which use quadrants. These are great for students as they give more definite parameters, and I have seen my students' perspective, spatial awareness, and art in general greatly improve since I've been using a few of these a year.
And, it is fun to visit real lighthouses, and we do whenever we have a chance. During a recent family vacation, we had the opportunity to tour the Turkey Point Lighthouse near North East, Maryland. The view of the Chesapeake Bay was lovely, and the ladders and stairs inside the lighthouses are always enchanting.