The current top five tallest buildings in the world are all located in Asia. Burj Khalifa in Dubai, UAE; Merdeka 118 in Kuala Lumpur, Malaysia; and Shanghai Tower in Shanghai, China.

Burj Khalifa

Burj Khalifa has been the tallest building in the world since 2010. It has a total height of 829.8 meters and a roof height of 828 meters (2,717 ft).

It's not only world's tallest building, it also broke two world's records according to its official website: tallest structure, previously held by the KVLY-TV mast in Blanchard, North Dakota, and tallest free-standing structure, previously held by Toronto's CN Tower. 

Its is named after Khalifa bin Zayed bin Sultan Al Nahyan, the president of the UAE and the ruler of Abu Dhabi. 

The building is a Neo-Futurism architectural style and designed by Adrian Smith of Skidmore, Owings & Merrill (SOM), a Chicago-based global architectural firm.

It's located at 1 Sheikh Mohammed bin Rashid Boulevard, Dubai, United Arab Emirates.

Merdeka 118

Formerly known as KL 118 and Warisan Merdeka Tower, Merdeka 118 is a 118-storey building in Kuala Lumpur, Malaysia with a height of 678.9 meters.

It's still on its way of completion and will be fully operational by 2022. It's a mix-use structures of shopping centers, offices, retail stores, residential and hotel observation.

Owned by PNB Merdeka Ventures, its architectural designer is Fender Katsalidis, an Australian architectural firm. Located at Jalan Hang Jebat, Petaling street, KL, Malaysia.

This is Southeast Asia's tallest building.

Shanghai Tower

Rising on Pudong avenue near the Huangpu river in Shanghai, Shanghai Tower is China's tallest building and second fully operational tallest building in the world after Burj Khalifa.

It is 632 meters tall and 128 storey of shopping centers, office spaces, residential, hotels and retail stores. It has the world's second high speed operation elevators.

Its tiered construction designed for high energy efficiency, provides nine separate zones dividend between office, retail and leisure use. It is operated by the Shanghai municipal government.

Its architectural designer is Gensler, the world's most renowned architectural firm and designer based in San Francisco, USA.

Abraj Al-Bait

It's a government-operated complex of seven skyscraping hotels located in Mecca, Saudi Arabia.

The complex is part of the King Abdulaziz Endowment project aims to modernize the pilgrimage site in Mecca.

The Makkah Clock Hotel Tower is the biggest clock face in the world. It houses Clock tower museum.

Its architectural design is Neo-classical and designed by The SL Rasch GmbH Special and Lightweight Structures, based in Stuttgart, Germany, and Dar Al-Handasah Consultants based in Beirut, Lebanon.

It has a total height of 601 meters tall.

Ping An International Finance Center

The fifth tallest building in the world is Ping An International Financial Center located in Shenzhen, Guandong, China.

It has a height of 562 meters or 1,844 feet. It is the second tallest building in China after Shanghai Tower.

Commissioned by Ping An Insurance, it is designed by an American architectural firm based in New York City, Kohn Pedersen Fox Associates.

Upcoming world's record holder

However, Burj Khalifa's record might be edged out soon as Saudi Arabia is currently constructing the world's most anticipated tallest building, Jeddah Tower, in Jeddah, KSA.

It has a planned height of 1,000 meters high. Architect designer is Adrian Smith, the designer of Burj Khalifa and Jin Mao Tower in Shanghai, China's tallest building until 2007.

Jeddah Tower completion is still unknown.