24/01/2015 GMT

This week we look at lift technology. In a world of ever-taller buildings there's a problem: getting people to the top of them. We visit an underground lift testing facility in Finland to hear about the latest developments including lifts that could one day travel horizontally as well as vertically.

30 minutes

Last on

Wed 28 Jan 2015 02:30 GMT
BBC World News North America


Role Contributor
PresenterSpencer Kelly