In 2003, the estate was added to the Preservation Alliance for Greater Philadelphia, a list of endangered historic properties. And it officially became the property of the Lynnewood Hall Preservation Foundation in June 2023, who have prepped the house for a massive restoration to ensure its future. Yet there’s one final secret inside this iconic home.

Leland Kent of Abandoned Southeast stumbled upon a mysterious underground tunnel, deep in the basement. Little is known about the clandestine passageway, and it's not clear what exactly it was used for. Widener's 37 permanent staff members may have used it to navigate the house, out of sight.

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