21.
Photograph by `James Wheeler on Flickr
22.
Photograph by Fiona McAllister Photography on Flickr
23.
Photograph by Marie-Lan Nguyen on Wikimedia Commons
24.
Photograph by Jorge Royan on Wikimedia Commons
25.
Photograph by abudoma on Flickr
26.
Photograph by Thomas Hartmann on Flickr
27.
Photograph by Diana Mehrez on Flickr
28.
Photograph by believer9 on Flickr
29.
Photograph by Gary Simmons on Flickr
30.
Photograph by lapoutre2tek on Flickr