A Traveler's Guide to the Planets takes you on a tour into the Solar System's Hot Zone to visit the two planets both laying claim to the title of 'Real Hell'. While tiny Mercury blisters in the roasting glare of the Sun, cross over to the dark side and you'll find the temperature plummets over a thousand degrees. Back away from the Sun to cool off and we encounter Venus, our nearest neighbor. Smothered by a climate gone mad, a romantic visit to our sister planet's tortured scenery means diving into an atmosphere hot enough to melt lead, where acid smog eats bare metal for breakfast and the pressure could crush a submarine. What happened to turn our planetary neighbors so astonishingly alien? What can a visit tell us about our own?