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Zol87: Rock from Clementine Hall of the Vatican on the Tribune Tower
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Zol87: Rock from Christ Church of Philidelphia on the Tribune Tower
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Zol87: Rock from the Powder Tower in Riga, Latvia on the Tribune Tower
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Zol87: Rock from Beaumaris Catle in Wales on the Tribune Tower
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Zol87: Rock from President Abraham Lincoln's Home in Springfield, Illinois on the Tribune Tower
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Zol87: Rock from the Chicago Union Stockyard Gate on the Tribune Tower
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Zol87: Rock from Fort Sumter in South Carolina on the Tribune Tower
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Zol87: Rock from Taintzkaya Tower of the Kremlin in Moscow, Russia on the Tribune Tower
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Zol87: Rock from Bunker Hill Massachusetts on the Tribune Tower
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Zol87: Rock from the 1893 World's Colombian Exposition in Chicago on the Tribune Tower
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Zol87: Rock from Fort Marion in St. Augistine Florida on the Tribune Tower
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Zol87: Brick from Colonel Robert McCormick's Birthplace on the Tribune Tower
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Zol87: Rock from Mount McKinley in Denali Park Alaska on the Tribune Tower
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Zol87: Brick from St. John's Church of Richmond, Virginia on the Tribune TowerRock from on the Tribune Tower
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Zol87: Brick from the White House on the Tribune Tower
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Zol87: Rock from the Site of Kensington Rune Stone in Minnesota on the Tribune Tower
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Zol87: Rock from the Colosseum in Rome on the Tribune Tower
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Zol87: Rock from the Bad Lands in South Dakota on the Tribune Tower
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Zol87: Rock from the Stabian Baths in Pompeii, Italy on the Tribune Tower
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Zol87: Rock from the Monsetary of St. Michael in Kiev, Ukraine on the Tribune Tower
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Zol87: Rock from the Holy Door of St. Peter's Cathedral in Rome, Italy on the Tribune Tower
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Zol87: Rocks from Ta Prohm Angkor & Bateay Srei Hindu Temple in Cambodia on the Tribune Tower
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Zol87: Ornament from the House of Parliament in London, England on the Tribune Tower
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Zol87: Rock from the Great Pyramid in Giza, Egypt on the Tribune Tower
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Zol87: Rock from the Dome of St. Peter's Cathedral in Rome, Italy on the Tribune Tower
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Zol87: Brick from President William Henry Harrison's Mansion in Indiana on the Tribune Tower
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Zol87: Brick from Fort Ticonderoga in New York on the Tribune Tower
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Zol87: Rock from Mark Twain's "Injun Joe" Cave in Missouri on the Tribune Tower
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Zol87: Rock from Mammoth Cave in Kentucky on the Tribune Tower
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Zol87: Rock the Walls of Londonderry in Northern Ireland from on the Tribune Tower