facts about petronas twin towers Kuala lumpur Malaysia

1.Petronas Twin Towers were the tallest buildings in the world from 1998 to 2004 until surpassed by Taipei 101
2.but still they are the tallest twin buildings in the world
3.The towers were designed by Argentine architect César Pelli
4.Planning on the Petronas Twin Towers started on 1 January 1992
5.The construction of the superstructure commenced on 1 April 1994
6.The building was officially opened by the Prime Minister of Malaysia's Tun Dr. Mahathir bin Mohamad on 1 August 1999
7.The buildings were built on the world's deepest foundations
8.It has a world record for the largest concrete pour until 2007, the concrete was continuously poured through a period of 54 hours for each tower
9.each tower is having 88 floors
10.Tower One is fully occupied by Petronas and a number of its subsidiaries and associate companies
11.Tower Two are mostly available for lease to other companies
12.Suria KLCC is a upmarket retail center at the feet of the Petronas Towers.
It features mostly foreign luxury goods and high-street labels.
13.Suria KLCC is one of the largest shopping malls in Malaysia
14.Spanning 17 acres below the building is the KLCC park with jogging and walking paths, a fountain with incorporated light show, wading pools, and a children's playground
15.The towers feature a double decker skybridge connecting the two towers on the 41st and 42nd floors, which is the highest 2-story bridge in the world
16.the towers sway several feet in towards and away from each other during high winds. It also provides some structural support to the towers in these occasions
17.The bridge is 170 m (558 ft) above the ground and 58 m (190 ft) long, weighing 750 tons
18.The same floor is also known as the podium, since visitors going to higher levels have to change elevators here
19.The skybridge is open to all visitors, but tickets are limited to about 1000 people per day,
and must be obtained on a first-come, first-served basis
20.Initially, the visit was free but in 2010, the tickets started being sold by Petronas
21.Visitors can choose to opt for package one which is just a visit to the skybridge or go for package two to go to the skybridge and all the way to level 86
22.Visitors are only allowed on the 41st floor as the 42nd floor can only be used by the tenants of the building
23.The skybridge also acts as a safety device, so that in the event of a fire or other emergency in one tower, tenants can evacuate by crossing the skybridge to the other tower
24.There is a two hinged arch that supports the skybridge with arch legs, each 51 metres (167 ft) long, that are bolted to level 29 of each of the towers
25.After being constructed on the ground, the skybridge was lifted into place on the towers over a period of three days in July 1995 but instead of being directly connected to the towers, the skybridge can shift or slide in and out of them in order to counterbalance any effect from the wind
26.The skybridge connects a conference room, an executive dining room and a prayer room