And I reckon it still. Folks were every bit as friendly on

this trip. The Arch, of course, is the city's architectural

wonder, designed by Eero Saarinen in 1948 and built in

the 1960s. Taller than a sixty-story building, it looks for

all the world as though it might twist apart in a good wind.

It is, however, a sound piece of geometry -- an upside-down

caternary curve. (Interested readers could make caternary

curves of their own at home by suspending a length

of chain between two points.)

 {Forward to 3 of 7}