If work on a 33-story downtown apartment building starts, as planned, in January, Des Moines will join the ranks of cities with the 100 tallest buildings ... Ascent St. Petersburg, a 357-foot ...

We took a trip to St. Louis’ Gateway Arch — the tallest man-made monument in the US. The arch is 630 feet high and its foundations are about 60 feet deep. It's made of 142 stainless steel ...