St. Stephans Cathedral vs Aon Center

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St. Stephen's Cathedral (more commonly known by its German Name: Stephansdom) is the mother church of the Roman Catholic Archdiocese of Vienna and the seat of the Archbishop of Vienna, Christoph Cardinal Schönborn, OP.

The current Romanesque and Gothic sort of the cathedral, seen now in the Stephansplatz, was mostly initiated by Duke Rudolf IV (1339--1365) and stands on the ruins of two earlier churches, the first a parish church consecrated in 1147.



The main religious building in Vienna, St. Stephen's Cathedral has borne witness to a lot of important events in Habsburg and Austrian history and has, with its multi-coloured tile roof, become among the city's most recognizable symbols.

Source: Wikipedia

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The Aon Center (200 East Randolph Street, formerly Amoco Building) is a modern supertall skyscraper just east of the Chicago Loop, Chicago, Illinois, United States, designed by architect Companies Edward Durell Stone and The Perkins and Will partnership, and completed in 1974 as the Standard Oil Building.

With 83 floors and a height of 1,136 ft (346 m), it's the fourth-tallest construction in Chicago, surpassed in height by Willis Tower, Trump International Hotel and Tower, and Vista Tower. The building is managed by Jones Lang LaSalle, which is also headquartered in the building. Aon Center formerly housed the world headquarters of Aon and Amoco. Aon still maintains headquarters of its US operations there. The building is also the co-headquarters of Kraft Heinz.

Source: Wikipedia