An article entitled "Gardening Under Glass" in the SF Gate covers all aspects of terrariums- with a great nod to Kat Geiger and a nice how-to portion at the end of the story. My favorite is the Terrardome (pictured above) designed by Ric Lopez. Would make a great coffee table centerpiece.
There may be no better example than Lopez's circular Terradome, which clearly nods to midcentury Modern design. The 19-inch-wide acrylic dome resembles the iconic 1950s-era depiction of a flying saucer. And though the Terradome ($85) could easily serve as the centerpiece of any high-design household, Lopez hopes it will also serve as an antidote for city dwellers "living in these tight, compacted tall buildings where people are piled on top of each other."
"Gardening Under Glass" in the SF Gate