The southernmost home in the continental U.S., located in Key West, Florida, is on the market for $18.5 million with historical significance and modern amenities, including a waterfront view where the Atlantic Ocean meets the Gulf of Mexico. Owned by Cecilia Joyce Johnson, widow of late sculptor Seward Johnson II, the property features five bedrooms, tropical surroundings, and a potential dock addition. The house, purchased by the Johnson family in the 1990s, offers a blend of historical charm and modern elegance, appealing to both residents and potential investors. Despite needing some renovation, it presents a unique opportunity due to its rarity as a private residence in a prime location near the Southernmost Point buoy.