Medium-resolution satellite imagery

10 meter:   At 10 meters, it's easy to see roads and water features.

High-resolution satellite imagery

1-2 meter:   At 1-2 meters, you can begin to distinguish the presence of cars and individual houses.

Very high-resolution satellite imagery

.3-.6 meter:   At 30-60 centimeters, you can easily discern key features such as manholes and mailboxes.