Stellarium - Stellarium is a free open source planetarium for your computer.
Craft & Oak - Beautiful, minimalistic custom map posters
Celestia - Real-time 3D visualization of space
Mapiful - Create & order custom printed maps of your favorite places
Star Chart - Stellarium is a planetarium software that shows exactly what you see when you look up at the stars. It's easy to use, and free. Read more about Star Chart.
Grafomap - A map poster of your favourite place on earth