What do the Sahara and Gobi deserts have in common?

Which 4 great deserts cover central Australia? Why do limestone that began as coral can be found on land? Where is the Fox Lake Historical Museum in Fox Lake Wisconsin located? What local stone was used to build Edinburgh castle? What and in the mouth of the cat that and tattooed on the ankle of the actor who received a star at 6259 Hollywood Boulevard in July 2010? How do you stop tourism harming the earth? What canals on the major canals map ran generally from east to west? What mountain was the tallest when Mt. Everest was not discovered? What is the abbreviation for Lake Superior? What is the value of a limited edition print of first light by steven townsend? Which New York City bus or train will take you to the American Museum of Natural History? Is the height of a mountain like Mt Everest always measured from sea level? When was Raahe Museum created? Which state shares borders with Indiana and Lake Michigan? Is chichen itza one of the seven wonders of the world? How many steps are in Amicalola falls? How much does it cost for a locker six flags Georgia? Who was the first person to set foot on top of mount Everest? What is the name of the city including the letters aaaannntrivo? What are some of the laws and responsibilities of tourism planning?