History
Gotham National Bank was one of the largest banks in Gotham. It was, however, part of the mob's "trading route". It was robbed by the Joker of over $68,000,000. Later, during the robbery, much of it was destroyed when the bus rammed through the wall to pick up what remained of the gang (the Joker only).
It was briefly seen again when the SWAT team attempted to invade the bank to take back the mob's stolen money, only to find marked bills in their place (Lau had earlier sent all of the Mob's money to be sent to a different, more secure location).