2018:
- Monterey, Yosemite, San Francisco, USA
- Cancun, Mexico
- Atlanta, Georgia, USA
- New York City, USA
2017:
- Atlanta, Georgia, USA
- Shanghai, China
- Lianyuan, Hunan, China
2016:
- Michigan, USA
- Williamsburg, Virginia, USA
- Washington, D.C., USA
- New York City, USA
- Lianyuan, Hunan, China
2015:
- Hunan, China
- Hangzhou, Zhejiang, China
- Shanghai, China
- Colorado, USA
- Asheville, North Carolina, USA
2014:
- Arizona, USA
- Dunhuang, Gansu, China