View Single Post
  #13  
Old 07-21-2009, 04:40 PM
Whack-a-Mole Whack-a-Mole is offline
Member
 
Join Date: Apr 2000
Location: Chicago, IL USA
Posts: 18,730
Probably not glass but the world's largest viewing panel is at the Dubai Aquarium & Underwater Zoo. Pretty freaking big.