Workers from two taxi cooperatives assembled the miniature gardens this week using black plastic garbage bags stretched across bamboo frames. Taxi fleets in Thailand are giving new meaning to the term 'rooftop garden.'īANGKOK (AP) - Taxi fleets in Thailand are giving new meaning to the term 'rooftop garden,' as they utilize the roofs of cabs idled by the coronavirus crisis to serve as small vegetable plots. Miniature gardens are planted on the rooftops of unused taxis parked in Bangkok, Thailand, Thursday, Sept.