Twin tower skyscraper in Kuala Lumpur — Designed by Cesar Pelli, the Petronas Towers were the tallest buildings as of their completion date. Located in Kuala Lumpur, the 88 story, 450m tall twin towers carry an Islamic geometrical influence, and are a symbol of Malaysian pride. To foster competition, the contract for the construction of the towers was awarded to two different construction companies, each assigned to work on one of the towers. This episode examines the race between the companies to each complete their tower first, as well as various construction challenges, including soil quality issues, the unique cement mixture that was needed as a steel substitute, and tropical weather. (thetvdb.com)