The inner planets always intrigued the different ideas and thoughts of the ancient astronomers.  They thought Venus was the planet of grace and dignity. It was the home of advanced thought and design.  Mars on the other hand was barbaric and arid.  Warrior came from here.  Several novels from H.G. Wells, Jules Verne, and Edgar Rice Burrows borrowed from these ideas.  Now we know there are not these cultures and attributes; Venus is hot wasteland with no cities, and Mars is cold hinterland with some possibility of microbial life. Comment on the similarities and differences of the Terrestrial planets.