now on bbc news, it's the travel show — with lucy hedges.week on the travel show: i am in dubai, with visions of the future at the delayed expo 2020. if i scan this image here, i get augmented reality view of what south korea deems to be the future of mobility. and that includes flying cars. woo! i take a dip and tumble... laughs. and i discover an artificial rainforest in what was once a desert. 0h, hello! 0h here we go! but first, in a difficult couple of years in the global travel calendar, there has been one giant mega event looming. and of course, fitting for a giant mega event, that was happen in this city of superlatives, dubai. nobody knew for sure it would happen, but here it is. hello, expo 2020, orshould that be expo 2021. it was delayed by a year, and for a place that relies so heavily on tourism, dubai needed this to happen. in fact, it is probably not too much of a stretch to say the entire international tourism industry needed this to happen. well, i'm armed with my expo passport — let's do this. it is taking place over six mo