10. Tesco Swords Distribution Centre
Dry food distribution center.
- area: 80,194 m²
- completion of construction day: 2007
- location: Swords, Fingal (Ireland)
9. The O2
Entertainment center.

fot. Danesman1 / wikipedia.org (CC BY-SA 3.0)
- area: 104,634 m²
- completion of construction day: 1999
- location: London (UK)
8. Boeing Composite Wing Center
Boeing assembly plant.
- area: 111,500 m²
- completion of construction day: 2016
- location: Everett, Washington (United States)
7. Hanover Fairground
The largest exhibition area in the world with 27 halls.

fot. Ballon-sz.de / wikipedia.org (CC BY-SA 2.0)
- area: 114,535 m²
- completion of construction day: ???
- location: Hanover (Germany)
6. Jean-Luc Lagardère Plant
Assembly plant of the Airbus A380.
- area: 122,500 m²
- completion of construction day: 2018
- location: Toulouse (France)
5. National Exhibition Centre

fot. N-allen / wikipedia.org (CC BY-SA 4.0)
- area: 186,000 m²
- completion of construction day: 1976
- location: Birmingham, West Midlands (United Kingdom)
4. Target Import Warehouse
- area: 187,664 m²
- completion of construction day: ???
- location: Savannah, Georgia (United States)
3. Inex Sipoo
Food distribution center.
- area: 195,000 m²
- completion of construction day: 2018
- location: Sipoo (Finland)
2. The Palace of Parliament
The largest legislative building in the world.

fot. Josep Renalias / wikipedia.org (CC BY-SA 4.0)
- area: 365,000 m²
- completion of construction day: 1997
- location: Bucharest (Romania)
- number of rooms: 1,100
1. Boeing Everett Factory
Boeing assembly plant.

fot. Jeremy Elson / wikipedia.org (CC BY-SA 3.0)
- area: 398,000 m²
- completion of construction day: 1967
- location: Everett, Washington (United States)
- number of employees: 30,000
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