gadgetroad has a compiled a list of the top 10 tallest structures by 2010. Demonstrating the construction boom that leads us higher and higher, only three structures on the list are current: KVLY-TV antenna (#4), CN Tower (#8), and Taipei 101 (#10). #1 will be the Burj Dubai, which will tower over even Dubai at 818m high (though some say it will break the 1km barrier).