Which u. s. state is home to the first mountain-climbing cog railway in the world?

a big wall across the mexican border so no drugs, terrorist, or illegal immigrants can come through : )    

an early twentieth-century ad for model home blueprints

the two atomic bombs dropped on japan in 1945 killed and maimed hundreds of thousands of people, and their effects are still being felt today. the uranium bomb detonated over hiroshima on 6 august 1945 had an explosive yield equal to 15,000 tonnes of tnt.