Michael Tropp has met seven presidents and visited all 39 presidential gravesites. This presidential history buff just paid his respects to Jimmy Carter.

Jimmy Carter’s legacy includes working to eradicate tropical diseases in Africa, South America and Asia and to end conflicts in places like Syria, Israel and Sudan. But the late former president’s efforts also live on in the wild places of his native Georgia that he worked as governor and president to protect.

Former President Jimmy Carter may have only served one term as governor, but he left his mark in many ways before leaving for Washington, even literally. With a pencil, Carter signed the desk in the governor’s ceremonial office,