A terrarium inside of an aquarium! So gorgeous, though I am a bit afraid of what might happen if the spider makes a run for it. To learn more about how terrariums work, check out this amazing Wardian case that has only been watered once in 53 years. ~AR
The “Island Vessel Vivarium” is a terrarium inside an aquarium. Designed by artist Alberto J. Almarza, show-cased at the Geek Arts / Green Innovators Festival in April 2010. Glass blower: Pittsburgh Glass Center.
“As a passionate nature lover, there is nothing more gratifying than observing this active and thriving little ecosystem as if seen through a magnifying glass.” ~Almarza
Living ingredients include moss, violets, a spider, and a centipede for the terrarium, and for the aquarium: Java moss, banana plant, barnacles, ghost shrimp, and zebra danios.
Or you could go the mad-scientist route and create a mini-Atlantis in there.