List of tallest buildings and structures
World's highest observation deck
Timeline of development of world's highest observation deck since inauguration of Eiffel Tower. Higher observation decks have existed on mountain tops or cliffs, rather than on tall structures.

List of tallest buildings and structures

Section Title: World's highest observation deck
Table Section Text: Timeline of development of world's highest observation deck since inauguration of Eiffel Tower. Higher observation decks have existed on mountain tops or cliffs, rather than on tall structures.

Record from	Record held (years)	Name and location	Constructed	Height above ground	Notes

m	ft

1889	42	Eiffel Tower, Paris	1889	275	902	Two lower observation decks at 57 and 115 m (187 and 377 ft).

1931	42	Empire State Building, New York City	1931	369	1,250	On the 102nd floor - a second observation deck is located on the 86th floor at 320 m (1,050 ft).

1973	1	World Trade Center, New York City	1973	399.4	1,310	Indoor observatory on the 107th floor of South Tower opened on April 4, 1973. Destroyed on September 11, 2001

1974	1	Willis Tower, Chicago	1974	412.4	1,353	103rd floor Skydeck opened on June 22, 1974

1975	1	World Trade Center, New York City	1973	419.7	1,377	Outdoor observatory on the South Tower rooftop opened on December 15, 1975. Destroyed on September 11, 2001

1976	32	CN Tower, Toronto	1976	446.5	1,464.9	Two further observation decks at 342 and 346 m (1,122 and 1,135 ft).

2008	3	Shanghai World Financial Center, Shanghai	2008	474	1,555	Two further observation decks at 423 and 439 m (1,388 and 1,440 ft).

2011	3	Canton Tower, Guangzhou	2011	488	1,601	The rooftop outdoor observation deck opened in December 2011. There are also several other indoor observation decks in the tower, the highest at 433.2 m (1,421 ft).

2014	2	Burj Khalifa, Dubai	2010	555	1,821	Opened on October 15, 2014 on the 148th floor. There is another observation deck at 452.1 m (1,483 ft) on the 124th floor, which has been open since the building was opened to the public.

2016	present	Shanghai Tower, Shanghai, China and Ping An Finance Centre (since 2017)	2015	562	1,841	Opened on July 1, 2016.

Sentence(s)

The Shanghai World Financial Center had a height of 474 m (1,555 ft).

final_sentence: The Shanghai World Financial Center had a height of 474 m (1,555 ft).