UTL is about exploring past, present and future urban technologies in science and fiction, etc...
https://en.wikipedia.org/wiki/Guangdong%E2%80%93Hong_Kong%E2%80%93Macao_Greater_Bay_Area
https://en.wikipedia.org/wiki/Guangdong%E2%80%93Hong_Kong%E2%80%93Macao_Greater_Bay_Area#Transportation
https://en.wikipedia.org/wiki/Hong_Kong%E2%80%93Zhuhai%E2%80%93Macau_Bridge
