What 4 places used to be covered in water?

Which city is known as Queen of mountain? What happens if villages appear along the nile? What is the name of the things of citys and other things? Is the Alamo river in California? What is the phone number of the Hands On Discovery Childrens Museum in Evansville Indiana? How much does it cost to build a aquifer? Who was the American naval officer that defeated the British on Lake Erie? What is the Ionian sea named after? Was the mission San Francisco de asis ever restored? What is the specialty about charminar? What do you call a highland which separates two river systems? How many doors does the taj mahal have? What causes the continuous flow of surface currents? Which cities are on the River Rhine? Why does the leaning tower of pisa lean? How many rivers are in Luxembourg? What is the oldest lighthouse? What are the temps for the Atacama Desert in the summer? What did the medieval castle builders use to stick the stones together on stone castles? What is the purpose of a lock when discussing waterways?