About the building, from Wikipedia:
451.9 m (1,483 ft)
378.6 m (1,242 ft)
375 m (1,230 ft)[1
The Petronas Towers, also known as the Petronas Twin Towers (Malay: Menara Petronas, or Menara Berkembar Petronas) are twin skyscrapers in Kuala Lumpur, Malaysia. According to the CTBUH’s official definition and ranking, they were the tallest buildings in the world from 1998 to 2004 until surpassed by Taipei 101, but they remain the tallest twin buildings in the world. The buildings are the landmark of Kuala Lumpur with nearby Kuala Lumpur Tower.
(end of Wikipedia entry)
We pretty much walked around it once, then ended the evening at the Sky Bar at Traders Hotel, 33rd floor