| Name | Name:Burj Khalifa | Name:Arecibo Telescope | 
| Height | Height:830 m, (2,722 ft) | Height:150 m, (492 ft) | 
| Location | Location:Dubai, United Arab Emirates | Location:Arecibo, United States | 
| Year Constructed | Year Constructed:2004–2009 | Year Constructed:1963 | 
| Description | Description:Holder of world's tallest freestanding structure. Topped out at 829.8 m (2,722 ft) in 2009. Tallest freestanding structure on land from 2007 to present (2013) | Description:A very tall Telescope . In 2013 it was the tallest Telescope in the world. | 
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