I didn't see a chord based version of this song, 
so i decided to hack a really simple version that sounds okay when playing along with the song, 
Email me @ Brianrankin@live.com if you have any questions :)

D (xx0232@1)                                                      GWhen (320003@1)there's a burning in your heart
                 D (xx0232@1)                                GAn (320003@1)endless yearning in your heart
           D (xx0232@1)                                  
Build it bigger than the sun
                  GLet (320003@1)it grow, let it grow
                       D (xx0232@1)                              GWhen (320003@1)there's a burning in your heart
                            DDon't (xx0232@1)be alarmed

ETC, once you get the rhythm down it's easy as pie. The chorus carries the same rhythm

BRIDGE

AmAnd (x02210@1)if you feel just like a tourist in the city you were born
GmThen (355333@1)it's time to go
AmAnd (x02210@1)define your destination
                                                             G(changes (320003@1)to major) 
There's so many different places to call home

etc etc

Hope this is okay, i might update it later if i figure out a better sounding way! cheers.