Postcard from the USA!

Today I got a nice postcard from the USA! The postcard shows a scene at Mars, Pennsylvania. It is a borough located in Butler County in Pennsylvania. It was incorporated in 1895 but the exact origin of its unique name is not known. It has a population of about 1,700 people with an area of about 1.2 square kilometres. It has its own school system and its residents are often referred to as Martians. Thanks Derek!