Philips Arena occupies the site of the Omni Coliseum and also is home to the NHL 's Thrashers and the Dream of the WNBA .
The Omni Coliseum is atlanta 's former sports arena .
Philips Arena occupies the site of the Omni Coliseum , Atlanta 's former sports arena , and also is home to the NHL 's Thrashers and the Dream of the WNBA .