What streets is walk of fame found in Hollywood?

What were Roman castles made of? Will a lake filled with people boating and swimming act like a mirror why or why not? What ocean has an area of about 70 million kilometers squared? How long did it take to built the Great Sphinx of Giza? How many skeletons are there on mount Everest? How did canals help society? What where bad things about the indus river? Where is the City Of Tonitown Museum in Springdale Arkansas located? What kind of sharks are in the lake havasu? Was Yellowstone established to preserve something? How did they make the Washington monument? How much of the Washington monument is buried underground? What is tallest and longest living tree you Canada? What is a porcullis in medeival times? How big do dolphins grow? What is the main type of land use used in everglades? What do these have in common - Murray Darling Warburton and Ord? Is there an ocean near the Grand Canyon? What city is located at the confluence of the Missouri and Mississippi Rivers? Where is the Usda Iroquois Lighthouse in Brimley Michigan located?