Click on below link and search for explorers: Age of Encounter, Early Global Connectors, Great Waters, Vikings, Exploring Countries, Geography for Tomorrow
https://www.google.com/intl/en_us/earth/education/resources/
Click on below link to explore American battlefields
National Parks Service https://www.nps.gov/index.htm
Jamestown Settlement and American Revolution Museum at Yorktown
https://www.historyisfun.org/jamestown-settlement/
Museum of American Revolution
https://www.amrevmuseum.org/education-museum/students-and-teachers/virtual-field-trip
Yellowstone National Park https://www.nps.gov/yell/index.htm
National Aquarium https://www.aqua.org/
American Museum of History https://www.amnh.org/
National Museum of Natural History https://naturalhistory.si.edu/
Colonial Williamsburg https://www.colonialwilliamsburg.org/
Georgia Aquarium https://www.georgiaaquarium.org/
U.S. Space and Rocket Center https://www.rocketcenter.com/
The British Museum of the World https://britishmuseum.withgoogle.com/ and https://artsandculture.google.com/partner/the-british-museum
Trans Mississippi Virtual Museum (Civil War) https://www.civilwarvirtualmuseum.org/
Wilson's Creek National Battlefield Foundation http://wilsonscreek.com/
National Museum of United States Air Force https://www.nationalmuseum.af.mil/Visit/Virtual-Tour/
National Museum of U.S Navy https://www.history.navy.mil/content/history/museums/nmusn.html
National Museum of U.S. Army https://www.thenmusa.org/
Boston Children's Museum https://www.bostonchildrensmuseum.org/museum-virtual-tour
National Women's History Museum https://www.womenshistory.org/womens-history/online-exhibits
Monterey Bay Aquarium https://www.montereybayaquarium.org/ (check out the live cams of sea animals)