Union Station Vaulted Coffered Ceiling Washington DC United States // WASHINGTON DC, District of Columbia — A dark curved balcony frames the geometric vaulted coffered ceiling and flanking lattice skylights inside Union Station. Designed by architect Daniel Burnham and opened in 1907, the terminal exemplifies the monumental Beaux-Arts architectural style. The ceiling utilizes deep octagonal coffers, a classical technique inspired by Roman antiquity that actively reduces the physical weight of the vault while maintaining structural rigidity.

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