Below, there are a series of 7 "Brain Puzzles". For each one, labeled Alpha, Bravo, Charlie, Delta, Echo, Foxtrot, and Golf, there are one or more parts (highlighted in yellow). These yellow squares or circles are labled A through N. The final coordinates are located here:
North AB CD.EFG West HIJ KL.MNO







Once you have all 7 puzzles solved, you can move onto the final puzzle

Once you think you have the solution, use the geochecker below.
You are looking for a magnetic nano.