Sydney Tower vs Aon Center

Informations

Sydney Tower is Sydney's tallest structure and the second tallest observation tower in the Southern Hemisphere. The title Sydney Tower is becoming common in daily usageNonetheless, the tower has been known as the Sydney Tower Eye, AMP Tower, Flower Tower, Glower Tower, Westfield Centrepoint Tower, Big Poke, Centrepoint Tower or just Centrepoint. The Sydney Tower is a member of the World Federation of Great Towers.The tower stands 309 m (1,014 ft) over the Sydney central business district (CBD), located on Market Street, between Pitt and Castlereagh Streets. It's available from the Pitt Street Mall, Market Street or Castlereagh Street and sits over the Westfield Sydney (formerly Centrepoint) shopping center.

The tower is open to the public, and is one of the most prominent tourist attractions in the city, being visible from a number of vantage points throughout town and from adjacent suburbs. Auckland's Sky Tower is taller but Sydney Tower's main observation deck is almost 30 m (98 ft) higher than the observation deck on Auckland's Sky Tower.While the shopping center at the base of the tower is run by Scentre Group, the tower itself is occupied by Trippas White Group, which owns and operates Sydney Tower Dining, and Merlin Entertainments, which owns and operates the'Sydney Tower Eye' observation deck and'Oztrek' simulated ride appeal.

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