Lincoln Memorial Reflecting Pool Blue Floor Painting Washington DC United States // WASHINGTON, D.C. — Workers seal and paint the floor of the Lincoln Memorial Reflecting Pool in a dark blue tint, Monday, April 27, 2026. Designed by architect Henry Bacon and completed in 1923, the 2,029-foot-long basin is a central element of the National Mall's Beaux-Arts landscape design. The concrete floor is periodically treated with this specialized dark sealant to enhance its optical properties. The deep coloring minimizes subsurface visibility, maximizing the mirror-like reflection of the adjacent Washi

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