What is a crescent shaped dune called?

What are cruise boats in Paris called? What are two physical features of the Grand Canyon? Where is it possible to learn about the Arch User Repository? What are facts about minnamurra rainforest? Is Jordan on gulf of Aqaba or the Red Sea? What can you do at ganges river? What is quasi-military? What was the purpose of a motte and bailey castle? How big was alcatraz? How do you you make a mini merry go round? What are the largest city parks in the world? Why do you think that we should not write anything on the walls of monument? What are the importance of Bridges? Did the boys and girls in the mission San Luis Obispo live in the same building? What is the starting point of godavari river? Where is the Bosque Museum in Clifton Texas located? What role did water play in creating the grand canyon? Who gave the statue of liberty as a gift of friend ship o the US? Which rock type is associated with high energy environment such as strong river flow? What famous North American landmark is constantly moving backward?