– Places in each state with kids (Yes, we actually visited universities) 
*Places we visited without kids.

Maine
– Acadia National Park
– Eat Lobster! (even at McDonalds!)

Maryland
– Colonial Annapolis Historic District
– Fort McHenry National Monument and Historic Shrine
– Greenbelt Historic District
– Harpers Ferry National Historic Park
– United States Naval Academy
– University of Maryland, College Park

Massachusetts
– Boston College
– Boston University
– Harvard University
– Minute Man National Historical Park
– Old Burying Point Cemetery
– Old Sturbridge Village
– Plimoth Plantation
– Plymouth Rock
– Salem Witch Museum

Michigan

Minnesota
– Mall of America

Mississippi

Missouri
– Gateway Arch

Montana
– Glacier National Park
– Grant-Kohrs Ranch National Historic Site
– Grizzly and Wolf Discovery Center
– Yellowstone National Park