What age do you have to be to get into alcatraz?

Why do people visit the galapagos islands? Where is the Nd Firefighters Museum in Garrison North Dakota located? What can you see at the ivory coast? Why is the Amazon Rainforest in danger? Which has a longer shoreline along Lake Erie Pennsylvania or Ohio? Castles in the UK? Does the Mississippi river flow through Texas and Georgia? Did people have guns in the middle ages? What is a small door or gate especially one built into or near a large one? How many people live in the ocean? Can you get to Florida by water from the Mississippi River without entering the ocean? Where is the Ocean Park Timberland Library in Ocean Park located? What is international tourism from domestic tourism? Where can you order a cover for the Home Trends swing with canopy - not a canopy but an outdoor cover for the swing? What other river flows north like the st johns? What is a dead lake? How can the river Nile environment be improved? What represents the largest reservoir of potential fresh water available to humans? What currency is used at the Grand Canyon? What are facts about the Hagia Sophia?