Could well have been on the Discovery Channel, they are building wonderful buildings all over the world each one more amazing than the last one.
Imagine a double-deck elevator ascending at 48.5mph
No. When I worked at the ARCO Towers (as it was then called) in LA during the 1980's....they had some that went quite fast up to the executive floors (48 or so to the top: 51)....once I was in one during an earthquake, which create great alarm for those on the 48th floor. I had no idea until I stepped out of the elevator....it shook all the way to the top, as usual, and I felt nothing different than normal.
Elevators aren't the place you're supposed to be during an earthquake. waaaaaa.