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

Alabama

Alaska
– Glacier Bay National Park and Preserve
– Klondike Gold Rush National Historic Park
– Skagway Historic District
– White Pass

Arizona
– Bearizona Wildlife Park
– Fiesta Bowl Parade, kid 1 was a participant!
– Four Corners Monument 
– Grand Canyon Caverns
– Grand Canyon National Park, North Rim
– Grand Canyon National Park, South Rim
– Grand Canyon Depot
– Grand Canyon Lodge
– Hoover Dam
– Meteor Crater and Visitor Center
– Monument Valley Navajo Tribal Park
– Northern Arizona University
– Petrified Forest National Park
– Rawhide Western Town and Steakhouse in Chandler

Arkansas
* Little Rock Central High School National Historic Site
* University of Arkansas, Little Rock

California
– Balboa Park
– Bodie State Historic Park
– California Coastal National Monument
– Devils Postpile National Monument
– Giant Sequoia National Monument
– Hearst Castle National Historic Landmark
– Joshua Tree National Park
– Kings Canyon National Park
– Lindsay Wildlife Experience
– Manzanar National Historic Site
– Mission Inn National Historic Landmark
– Monterey Bay Aquarium
– Monterey State Historic Park
– Muir Woods National Monument
– Redwood National and State Parks
– Rose Bowl Stadium Historic Landmark
– San Luis Rey Mission Church
– Sequoia National Park
– Yosemite National Park

Colorado
– Dinosaur National Monument
– Durango-Silverton Narrow Gauge Railroad National Historic Landmark
– Four Corners Monument
* Gateway Auto Museum 
* Independence Pass along route 82 outside Aspen.  Also includes Independence Ghost Town
* Leadville Historic District
– Mesa Verde National Park
– Old Hundred Gold Mine
– San Juan Skyway National Scenic Byway, park of San Juan National Forest.  Also called Million Dollar Highway
– Silverton Historic District

Connecticut
– Yale University

Delaware
– University of Delaware

District of Columbia
– Arlington National Cemetery
– George Washington University
– Georgetown University
– Library of Congress
– National 9/11 Pentagon Memorial
– National Museum of African American History and Culture
– National Museum of American History
– National Zoo
– Newseum
– Smithsonian American Art Museum
– Smithsonian National Air and Space Museum
– Smithsonian National Museum of Natural History
– Supreme Court Building
– United States Capitol
– United States Holocaust Memorial Museum
– White House

Florida

* Pensacola Beach