With a world-class aquarium, major sporting events and fantastic food, Baltimore is filled with things to do and see. The prime spot for activity is the Inner Harbor, where you'll find the Harborside Shopping Pavilion, Oriole Park at Camden Yards, the National Aquarium, Port Discovery and much, much more. Plus, there are a number of historical sites nearby, including Mount Vernon and Federal Hill. The One Thing You Don't Want to Miss: For a real family adventure, check out the National Aquarium in the Inner Harbor, with an amazing collection of more than 10,000 specimens and 560 species. You'll encounter everything from the gigantic pacific octopus to a blue poison dart frog, and don't forget humpback whales, monkeys, sharks, puffins and more. There's even a simulated rain forest with piranha and sloths, and a coral reef with vividly colored tropical fish.