Overlap Maps is a website by Sunflower Education that allows you to compare the sizes of nations, states, bodies of water, man made features and objects from nature with each other. You simply select from two columns, click the green arrow, and presto, you get a picture with the two selections overlapped. Below you can see an overlap I did between Texas and Australia. It is easy to to, it is fun, and it is educational for everyone. Overlap Maps is useful for doing research on various topics and places.