In USA

2007

Yale Univ. ---------------------------- MIT

Six flags after soaking wet --------------- Sunken Meadow

Acadia Bubble Mt. ---------------- View from Borr Mt. Trail

2006

West Point Museum

In China

2006

Hangzhou Taiziwan

2005

Yellow Mt. --------------- Putuo Mt.

2004

Shizilin in Suzhou ----------- Mudu in Suzhou