What's interesting about most of Las Vegas' most notable skyscrapers is that, most of thr landmarks are located just outside of the city limits in unincorporated areas of Winchester and Paradise. Speaking of Paradise. According to the U.S. Census Bureau, the unincorporated Vegas suburb has grown faster than most suburbs in the nation from nearly 25,000 in 1970 to 186,070 in 2000. This is also roughly the same number-size as the city of Orlando alone! (excluding suburbs). Paradise is also the home of UNLV and McCarran International Airport south of Tropicana Avenue.