TLC and TCM help 'hanging garden' grow

In an area full of shabby bungalows north of the Temple of Heaven in southern Beijing, a garden is perched on the roof of a traditional courtyard home. Visitors who step up onto the roof are welcomed by bird chirps and green vines under the blue sky. In the center of the balcony, red fishes are swimming leisurely in an ancient-style pond. Tomatoes on the vine are so plump and fresh that they look like red lanterns.