http://tywkiwdbi.blogspot.com/2013...

A Sarajevo Rose is a concrete scar caused by a mortar shell's explosion that was later filled with red resin. Mortar rounds landing on concrete create a unique fragmentation pattern that looks almost floral in arrangement. Because Sarajevo was a site of intense urban warfare and suffered thousands of shell explosions during the Bosnian War, the marked concrete patterns are a unique feature to the city.

source: http://fistfullofsoul.tumblr.com/post...

source: http://imgur.com/gallery...

source: http://apod.nasa.gov/apod...

source: http://all-that-is-interesting.com/page/2/

source: http://www.buzzfeed.com/expresid...

source: http://forum.ebaumsworld.com

source: http://12daysofgifmas.tumblr.com/post...

3D printing pen in action.
More info here: http://www.thisiscolossal.com/2013...

The Palácio do Planalto is the official workplace of the President of Brazil. Constructed in 1958. Designed by Oscar Niemeyer.

source: http://blog.flickr.net/en...

also http://www.flickr.com/photos...