Wombat Hall is a place concert hall in the Rugrats franchise. In "And the Winner Is..." the exterior is not shown, but the interior is.
It held the weddings for Lou Pickles (1991) & Lulu Pickles and for Chas Finster & Kira Watanabe-Finster in the 2000 film "Rugrats In Paris: The Movie"
It is seen in "All Grown Up!" episode "Truth or Consequences"