Most aquariums are your standard box filled with water, but they don't have to be boring like that. WebEcoist has gathered up some fantastically imaginative aquariums. The article has quite a few clever tanks, including one made from a phone booth and one dance floor aquarium filled with sharks.
The fish tanks above are creations by artist Vanessa Mitrani. They are ideal for betas, as they are compartmentalized so more than one of the beautiful fishes can live next to each other without fights. I normally feel kind of bad for betas with their tiny little tanks, but these tanks are like luxury condos for the little guys.