Al Fahidi Fort:

Launch year: 1799
Years it was the tallest: 179

The Al Fahidi Fort was (23m) used to guard landward approaches to the town from raiding tribes. It has also served, at various times throughout history, as the Ruler's Palace, a garrison, and a prison. it was converted and renovated into the Dubai Museum in 1971

Sheraton Dubai Creek Hotel

Launch year: 1978
Years it was the tallest: 1

The 60m Sheraton Dubai Creek Hotel by the Dubai Creek used to be called the "Lady of the Creek"

Dubai World Trade Centre:

Launch year: 1979
Years it was the tallest:  20

Dubai World Trade Centre at a cool 149m was inaugurated by the late Shaikh Rashid Bin Saeed Al Maktoum as a business centre. Planned redevelopments to the landmark building include a convention centre, office and residential towers, two five-star hotels and shopping malls; upon completion it will have a parking space for 8,300 cars.

The project will cost Dh16 billion. Construction work has been delayed by around nine months and is now expected to be completed in the third quarter of 2011.

Burj Al Arab:

Launch year: 1999
Years it was the tallest: 1

The 321m Burj Al Arab stands on an artificial island 280 metres off Jumeirah beach, and is connected to the mainland by a private curving bridge. It cose Dh650 million to build the landmark seven-star hotel, which was erected in a total of five years (first three of which was to construct the island).

Emirates Office Tower:

Launch year: 2000
Years it was the tallest: 8

Also known as Emirates Towers One, this is the 54-floor iconic building on Shaikh Zayed Road that stands at 351m. Construction began in 1996 before the building was ready for 2000. There are 17 elevators installed in the building. 

Almas Tower: 

Launch year: 2008
Years it was the tallest:  1

Standing at 360m, Almas Tower is located on its own artificial island in the centre of Jumeirah Lake Towers scheme. It houses thr Dubai Diamond Exchange (DDE)

Burj Dubai:

Launch year: 2010

The Burj Dubai is the tallest man-made structure ever built. The construction began on September 21, 2004 and was completed this year. It cost a total of Dh4.1 billion for the Burj Dubai porject.