What are the benefits of aviation community?

What are the strengths and weaknesses of Eiffel Tower? Where is the Charles bridge located? What is the feet between the two towers of the Brooklyn Bridge? What is the Effie tower made of? Why was the Bermuda trinagle called the Bermuda trinagle? Where does the river Avon start? Is The Potomac River a lagoon? Is abigals wall the other name for yigaels wall? Are dogs allowed on kincardine beach? Is sand castle one word or two? Which of the famous American presidents are carved in mount Rushmore in South Dakota? What process makes deltas? How many did it cost to build Oroville Dam? What is the ocean water like on the Western coast of the US? Why was crossing the deadly desert was dangerous? What makes a desert so dry? What is a belfry tower used for? Can elderly people go to Alton towers? What was the best way European sailors learned to handle oceans currents? How are sea stacks formed and sea archs?