Tim Halbur

CNN does a roundup that includes obvious leaders like Amsterdam and some less predictable choices like Chicago and Bogota, Colombia.

Natural and artificial light have a significant effect on the experience of hospital patients and can actually reduce stress and hospital time, says Rosalyn Cama, an interior designer and researcher specializes in health care design.

The Senate passed two bills late last week that essentially killed growth management in Florida, eliminating the Dept. of Community Affairs and repealing a law from 1985 that required developers to assess impacts.

Philadelphia's water department has opened its first street made of porous pavement, which will help city streets safer by absorbing rain water.

The Metropol Parasol sweeps majestically up out of the Plaza de la Encarnacion in Seville, Spain. The world's largest wooden structure, it was completed only last month.