Xi'anyang , Shaanxi , China

Berkeley , California , USA

Tulsa , Oklahoma , USA

New York , USA

Roma

Baden-Württemberg , Germany

Græsted , Nordsjælland , Denmark

Auckland , New Zealand

Helsinki , Finland

Roorkee , India

Graz , Austria

Irvine , California , USA

Terrace , British Columbia , Canada

Melbourne , Victoria , Australia

Philippines

texas , USA

Huntington Beach , California , USA

Nieuw Heeten

Menlo Park, United States , California , USA

Austin , Texas , USA