Largest Buildings in the world 

(By floor space)

  #14. The Pentagon


Rank

Location

Floor Area

Volume

   1

New Century Global Centre

Chengdu

1,760,000 m² (18.94 million sq ft)

2

Dubai International AirportTerminal 3

Dubai

1,713,000 m² (18.44 million sq ft)

3

Abraj Al-Bait Endowment

Mecca

1,575,815 m² (16.96193 million sq ft)

4

World Trade Center Complex

New York City

1,384,255 m² (14.9 million sq ft)

   5

CentralWorld

Bangkok

1,024,000 m² (11.02 million sq ft)

6

Aalsmeer Flower Auction

Aalsmeer

990,000 m² (10.6 million sq ft)

7

Beijing Capital International Airport Terminal 3

Beijing

986,000 m² (10.6 million sq ft)

8

The Venetian Macao

Macau

980,000 m² (10.5 million sq ft)

9

Sands Cotai Central

Macau

890,000 m² (9.5 million sq ft)

10

Berjaya Times Square

Kuala Lumpur

700,000 m² (7.5 million sq ft)

11

Central Park Jakarta Complex

Jakarta

655,000 m² (7.0 million sq ft)

12

The Palazzo

Las Vegas, Nevada

645,581 m² (6.9 million sq ft)

13

Grand Indonesia

Jakarta

640,000 m² (6.9 million sq ft)

14

The Pentagon

Arlington County, Virginia

610,000 m² (6.6 million sq ft)

15

K-25 (currently under demolition)

Tennessee

609,000 m² (6.6 million sq ft)

16

Air Force Plant 4

Texas

603 870 m² (6.5 million sq ft)

17

Marina Bay Sands

Singapore

581,400 m² (6,258,000 sq ft)

18

Keangnam Hanoi Landmark Tower

Vietnam

579,000 m² (6.4 million sq ft)

19

Hong Kong International Airport Terminal 1

Hong Kong

570,000 m² (6.3 million sq ft)

20

Suvarnabhumi Airport

Samut Prakan

563,000 m² (6.06 million sq ft)

21

ATL Logistics Centre, Centre B

Hong Kong

550,000 m² (6.0 million sq ft)

22

Mexico City International Airport Terminal 1

Mexico City

548,000 m2(5,900,000 sq ft)

23

Barcelona Airport Terminal 1

Barcelona

544,066 m2(5,856,280 sq ft)

24

Osaka StationCity

Umeda, Osaka

530,000 m² (5.705 million sq ft)

25

Renaissance Center

Detroit

515,800 m² (5.55 million sq ft)