Twin towers is a sort of building complex that mainly consists of two towers with the same or similar appearances. Building two identical towers together could make them look more impressive.
There are tens of buildings around the world that could be identified as twin towers. Here I show you some of them which are tallest in some different categories.
Tallest completed twin towers--Petronas Towers
Height: 452 meters (1483 feet)
Built in 1997, Petronas towers were the tallest buildings in the world during 1997 to 2004, and the twin towers have been the tallest twin towers in the world for over 20 years, the towers may keep holding this title for many more years as there's still no a new proposal for twin towers with higher height proposed until today.
Tallest twin towers used for hotels--JW Marriott Marquis Dubai Hotel
Height: 355 meters (1166 feet)
JW Marriott Marquis Dubai Hotel is a complex of two supertall towers in Dubai. Although at here they are referred to as the tallest twin towers used for hotels, the 355m towers are actually also the tallest hotel buildings in the world. There are 3 buildings in the world that possess higher hotels, respectively are Abraj Al Bait, International Commercial Center and the Shanghai Tower, but all of them are not purely used as hotels, Emirates Towers are still the tallest all-hotel buildings, there are 1608 suits within the twin towers.
Tallest residential twin towers--Al Habtoor City Towers
Height: 300 meters (984)
Al Habtoor City Towers is a residential building complex in Business Bay, Dubai, the complex includes two same supertall towers and a shorter tower. As to the tallest residential building, the title belongs to 432 Park Ave in New York City or newly built Marina 101 in Dubai, but for residential twin towers, these two towers deserve that title. As of May 2017, the buildings are close to top out, already become the tallest twin towers ever constructed that will be fully served as residences.
Tallest twin towers being built--Wuhan Center & Wuhan World Trade Center
Height: 438 meters (1437 feet)
Wuhan Center and Wuhan World Trade Center are two ongoing skyscraper projects in Wuhan, China. Although the two towers don't share a same name, they're actually planned to form a new complex of twin towers.
The first tower Wuhan Center had been topped out in 2015, and is set to be completed in 2017.
The second tower the Wuhan World Trade Center is currently on site preparation, construction will start soon, and after that the tower could be topped out in less than 2 years.
Tallest religious twin towers--Cologne Cathedral
Height: 157 meters (515 feet)
Cologne Cathedral is one of the tallest churches in the world, and the world's tallest church with twin towers, which are the highest twin towers for religious use, the church was completed in 1880, since then its twin towers have been the tallest religious twin towers in the world, and will continue to hold this title for a quite long time as it is hard likely that another higher projects will be proposed in a short time. Some of you may say the cathedral will be surpassed by two Mosque Minarets in Mecca:
However these two minarets are situated too far from each other, don't appear like twin towers at all, but like two separated towers, additionally there's another same minaret is planned to be added to the area, though currently only two are approved and under construction.