ภาพสาหร่ายบนดาดฟ้าโรงแรมในกรุงเทพฯ
![Energaia workers inspect some of the bio-reactors growing spirulina on the rooftop of a Bangkok hotel, Sept. 24, 2013. (S.L. Herman/VOA)](https://gdb.voanews.com/896fdf1b-505e-4ff9-baf8-691d7f7565f4_w1024_q10_s.jpg)
1
Energaia workers inspect some of the bio-reactors growing spirulina on the rooftop of a Bangkok hotel, Sept. 24, 2013. (S.L. Herman/VOA)
![Freshly harvested spirulina is placed in jars to be sold to customers in in Bangkok, Sept. 24, 2013. (S.L. Herman/VOA)](https://gdb.voanews.com/d370c695-3941-452c-8d90-f6961c597526_w1024_q10_s.jpg)
2
Freshly harvested spirulina is placed in jars to be sold to customers in in Bangkok, Sept. 24, 2013. (S.L. Herman/VOA)
![Spirulina is applied for a facial treatment in a Bangkok hotel's spa, Sept. 24, 2013. (S.L. Herman/VOA)](https://gdb.voanews.com/f878182b-f4e2-45e4-9110-81b6e097c299_w1024_q10_s.jpg)
3
Spirulina is applied for a facial treatment in a Bangkok hotel's spa, Sept. 24, 2013. (S.L. Herman/VOA)
![The single-celled bacteria is purported to have anti-inflammatory properties making it desirable for skin treatments, Bangkok, Sept. 23, 2013. (S.L. Herman/VOA)](https://gdb.voanews.com/a57046f7-56d0-4e11-9dbf-859c0065b515_w1024_q10_s.jpg)
4
The single-celled bacteria is purported to have anti-inflammatory properties making it desirable for skin treatments, Bangkok, Sept. 23, 2013. (S.L. Herman/VOA)