An illustrated rundown (based on NASA's authoritative study) of 10 plants that will purify the air in any home or office.

These vegetables and herbs can be grown organically by novice gardeners

Once their conventional usefulness is up, shipping containers can be transformed into spectacular, modern buildings like hotels, museums, homes and shops.

These 12 visionary films create dismal futures caused by present-day problems like global warming, wildlife extinctions and resource depletion.