Answer:

zoo

Answer	Crossword Clue
ZOO	San Diego's covers 2,200 acres
ZOO	Animal place
ZOO	Sight-seeing mecca in San Diego

ZOO	Animal house
ZOO	Chicago's Lincoln Park, e.g.
ZOO	Where to see an anoa
ZOO	Bronx attraction
ZOO	Madhouse, so to speak
ZOO	Setting for the climax of "Anchorman"
ZOO	Chaotic scene, as it were
ZOO	Fauna display

ZOO	Mob scene
ZOO	Place of chaos
ZOO	San Diego attraction
ZOO	Scene of chaos
ZOO	Madhouse
ZOO	School field-trip spot
ZOO	Crowded, noisy place
ZOO	Albee's "The ... Story"

ZOO	Cagey institution?
ZOO	Bear spot, maybe
ZOO	Menagerie
ZOO	San Diego landmark
ZOO	Tumultuous scene
ZOO	Vet employer
ZOO	Animal housing
ZOO	Pandemoniac place

ZOO	Chaotic scene
ZOO	Moat site
ZOO	Site of bedlam
ZOO	Cagey locale?
ZOO	Petting place
ZOO	Wild scene
ZOO	Where the wild things are
ZOO	"If I Ran the ..." (Dr. Seuss book)

ZOO	Crowded, chaotic place
ZOO	Lion's home, maybe
ZOO	Petting ...
ZOO	Chaotic place, so to speak
ZOO	Where to observe rare animals