Our detectives are back with the following intel on this WordPress site
The site is using the pho-bo theme by Markus Bauer .
We could identify 3 plugins (there might be more) - flickr-media-library , Smash Balloon Social Photo Feed and Jetpack by WordPress.com
pho-bo is a responsive, accessible, high-resolution theme featuring large images, and an easy to read layout that scales to fit all screens. Other features include sidebar- and footer widgets and support for various Jetpack features such as portfolio types. pho-bo is translation ready and ships in German and English.