continent                  structure height  year                 country
0           asia               burj khalifa      -  2009    united arab emirates
1         africa          nador transmitter      -  1972                 morocco
2  north america             kvly - tv mast      -  1963           united states
3  south america        gran torre santiago      -  2012                   chile
4         europe         mercury city tower      -  2013                  russia
5      australia   vlf transmitter woodside      -  1971               australia
6        oceania  vlf transmitter lualualei      -  1972  united states (hawaii)

Table as JSON:
{"continent":{"0":"asia","1":"africa","2":"north america","3":"south america","4":"europe","5":"australia","6":"oceania"},"structure":{"0":"burj khalifa","1":"nador transmitter","2":"kvly - tv mast","3":"gran torre santiago","4":"mercury city tower","5":"vlf transmitter woodside","6":"vlf transmitter lualualei"},"height":{"0":"-","1":"-","2":"-","3":"-","4":"-","5":"-","6":"-"},"year":{"0":2009,"1":1972,"2":1963,"3":2012,"4":2013,"5":1971,"6":1972},"country":{"0":"united arab emirates","1":"morocco","2":"united states","3":"chile","4":"russia","5":"australia","6":"united states (hawaii)"}}