<Tr> <Th> </Th> <Td> The Dubai Mall </Td> <Td> United Arab Emirates </Td> <Td> Dubai </Td> <Td> 500,000 m (5,400,000 sq ft) </Td> <Td> </Td> <Td> </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Tesla Factory </Td> <Td> United States </Td> <Td> Fremont, California </Td> <Td> 427,354 m (4,600,000 sq ft) </Td> <Td> </Td> <Td> Automobile production facility of Tesla Motors . </Td> <Td> </Td> </Tr> <Tr> <Th> </Th> <Td> Boeing Everett Factory </Td> <Td> United States </Td> <Td> Everett, Washington </Td> <Td> 398,000 m </Td> <Td> 900 mx 495 m </Td> <Td> Boeing's assembly site for a selection of the company's largest aircraft, originally built for construction of the 747 . </Td> <Td> </Td> </Tr> <Tr> <Th> 5 </Th> <Td> Daikin Texas Technology Park </Td> <Td> United States </Td> <Td> Waller, Texas </Td> <Td> 393,000 m <P> (4.23 million sq ft) </P> </Td> <Td> </Td> <Td> Factory and distribution center for heating and air conditioning products </Td> <Td> </Td> </Tr>

What is the largest building in the uk