The Petronas Twin Towers of Kuala Lampur, Malaysia is generally accepted as the world's tallest building.
Twin Towers: The Life of New York Citys World Trade Center.
Even though the Sears Towers, without antennas, is taller than the Petronas Towers, without poles, experts include the poles in measurement and not Sear's antennas because the poles are considered an important architectural design to the towers.
The Petronas Twin Towers are currently the tallest twin towers in the world, and they lay claim to being the world's tallest high rise of the 20th century.
Built of steel-reinforced concrete columns clad in stainless steel and glass, with a design based on geometric patterns originating in ancient Islam, the 88-story buildings are connected at levels 41 and 42 by a double-decker pedestrian skybridge, and each tower is surmounted by a 242-ft-high (74-m) pinnacle.
Sears Tower in Chicago, Illinois, USA photographed from Lake Michigan.
Although other buildings such as the Sears Tower have higher occupied floors, a higher pinnacle, and a higher roof, the Petronas Twin Towers' spires are classified as architectural details and rise to 452m (1483feet), giving it the greatest structural height until Taipei 101.