So far we have identified the following possible locations for TH1:
Big Island or Maui, Hawaii
Independence Mine, Alaska
Matanuska Glacier, Alaska
Eagle Rock State Park, Craig, Montana
Mount Rushmore, South Dakota
Nebraska State Capitol Building, Lincoln, Nebraska
Fort Pulaski, Savannah, Georgia
The National Mall, Washington, DC
Boston Light, Boston, Massachusettes
Strawbery Banke, Portsmouth, New Hampshire
Big Ben, London, England
Dover Castle, Kent, England
Eiffle Tower, Seine River, Paris, France