If you are thinking about birthday gift for someone special, buy him puzzle. Tease his brain and delight his eyes with these 3D luminous puzzles. You can make a challenge how long will it take to put together. It is fun for the whole family.

credit: Wootang01

DS5 combines ground-breaking style, rewarding driving dynamics and exceptional refinement with innovative engineering solutions. It completes the present DS line-up (DS3 and DS4) and while it is the range topper. This model fits perfectly with the brand’s “Créative Technologie” baseline and features even bolder choices in style, architecture, sensations and refinement. Citroen sees the DS5 as a competitor to D-segment models such as the Volkswagen Passat and Opel Insignia, and premium executive models including the Volkswagen CC and Audi A4. The DS5 engine range comprises of a 110hp 1.6-litre eHDI engine, a 160hp 2.0-litre HDI unit, a 200hp turbocharged petrol and the range topping diesel-electric hybrid powertrain that is identical to the one used in the recently launched Peugeot 3008 HYbrid4.

credit: Autoviva.com

A green roof is a roof partially or totally covered by vegetation like grass, shrubs, flowers to reduce heating and cooling costs, harvest rainwater and improve air quality in the city. If even 10% of buildings in downtown would install green roof systems, through summer time city temperature would decrease by 1-2 degrees. Green construction becomes more popular last years.