Grandfathered plants, built before the state's Clean Air Act in 1971, are bigger polluters than newer ones, accounting for 36% of the chemicals Texas releases into the atmosphere each year.

ECONOMIST: The Lone Smog State

The Safy Mountain range is of strategic importance because it overlooks the Bagram air base, which was built by Soviet forces during the Soviet Union's war with Afghanistan in the 1980s.

CNN: New attacks on Kandahar

The crane alone took two years: It's all hand-built, but it's capable of lifting a two-ton safe 30 feet in the air.

CNN: This 'Mousetrap' can crush a car -- and teach physics

Built in 1991, Stansted's main traffic is provided by budget airlines such as Easyjet and Ryan Air flying to Europe.

BBC: Manchester Airport Group confirms Stansted takeover deal