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Photo: Elisa Rolle, CC BY-SA 3.0 via Wikimedia Commons
Built by slaves for John Randolph, this 1850s antebellum estate is reputed to be the South's largest and looks like it could be the White House. It functions as a hotel and restaurant but is also available for tours.
Nottoway Plantation, also known as Nottoway Resort, and Nottoway Plantation House, is a historic plantation complex located near White Castle, Louisiana, United States. The plantation house, which was destroyed by fire in 2025, was a Greek Revival and Italianate-styled mansion built for John Hampden Randolph in 1859. With 53,000 square feet (4,900 m2) of floor space, it was the second largest antebellum plantation house ever constructed in the Southern United States, sitting just behind neighboring Belle Grove Plantation in Iberville Parish. Several dependencies and historic structures remain intact on site despite the loss of the main house.
© OpenStreetMap contributors
Designed in 1909 by Colonel George Washington Goethals, who went on to design the Panama Canal, this structure is great fun to check out even though it's no longer operating: you can walk along the precipitous edges of the lock and still imagine how freight vessels were conveyed from Bayou Plaquemine to the Mississippi River.