If you're looking for a different art experience, historian Cheng Po-hung will lead a guided tour this Sunday on the culture and heritage of the tram terminus in Shek Tong Tsui. Presented by the Working Group on Greening and Beautification Works in Central and Western District, it will be one part of a public art project - Art-Marking-Boundaries - co-presented by the Hong Kong Arts Centre, to revitalise cultural life in the district around the tram area. Participants will first be taken around the Central and Shek Tong Tsui area, followed by a short tram ride where Cheng will relate stories and heritage of the tram system along the way. This special one-off tour will be from 2pm to 5.30pm. Although it's free, there are some conditions. First, you must sign up through the Hong Kong Arts Centre. Also, the talk will be in Cantonese. For registration information, e-mail email@example.com . It is first-come, first-served, and successful applicants will be notified. If you can't take part in the tram tour, there's another aspect of the project with photographer Tse Ming-chong. Assisted by four Hong Kong Art School students, he will collect pictures and people's stories about the transport system known to locals simply as the ding-ding, and eventually all the artefacts will be displayed on a mobile art tram rolling across Hong Kong starting in March.