US website Boredpanda has published a list of the 30 most unique modes of transport, which includes Viet Nam's cyclo.
Considered an offshoot of the rickshaw, a popular vehicle in Ha Noi and Sai Gon in the 19th century, the cyclo has three wheels with a passenger seat in front and the pedals and the driver's seat behind.
They are common in major cities like Ha Noi, Hue, Da Nang, and HCM City, and are often the transportation of choice for tourists.
But in some Mekong Delta provinces like An Giang, Tien Giang, the passenger seat is in the back.
Besides cyclos, the list also includes the reindeer sled (Finland), tram (France), suspension railway (Germany), hydrofoil (Greece), gondola (Italy), toboggan (Portugal), trolley bus (Russia), aerial tramway (Switzerland).