hello and welcome to switzerland. i m in the town of chateau d oex. it is known for its gruyere cheese, which is delicious, and the international balloon festival, held in the valley behind me every winter. but let s start somewhere a little warmer. mexico city s ancient canal network was first built by the aztecs. it stretches 180 kilometres and these days the whole district of xochimilco is a unesco world heritage site but one that could do with a bit of a clean up. we sent eva zu beck there to find out why. check out all these amazing boats, they re so colourful. these are called trajineras.
to hurry up its delivery of military supplies. he warned that any delay would be a big mistake and there was no alternative to a ukrainian victory. and a former security guard at the uk embassy in berlin has been sentenced to 13 years in prison for spying for russia. you re watching bbc news. now it s time for the travel show. hello, and welcome to switzerland. i am in a town known for its gruyere cheese, which is delicious, and the