continent                   structure height  year                 country
0           asia                burj khalifa      -  2009    united arab emirates
1         africa  omega transmitter chabrier      -  1976        rãunion (france)
2  north america              kvly - tv mast      -  1963           united states
3  south america          omega tower trelew      -  1971               argentina
4         europe           warsaw radio mast      -  1974                  poland
5        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":"oceania"},"structure":{"0":"burj khalifa","1":"omega transmitter chabrier","2":"kvly - tv mast","3":"omega tower trelew","4":"warsaw radio mast","5":"vlf transmitter lualualei"},"height":{"0":"-","1":"-","2":"-","3":"-","4":"-","5":"-"},"year":{"0":2009,"1":1976,"2":1963,"3":1971,"4":1974,"5":1972},"country":{"0":"united arab emirates","1":"rãunion (france)","2":"united states","3":"argentina","4":"poland","5":"united states (hawaii)"}}