many of them now call that's good. the ruins of ancient caravans, cancer treatment centers of america home. highway rest stops from when expert medicine works here. like a lot of time. like four years i've been trying. find out why at cancer center.com. finally. armies, merchants, traders cancer treatment centers of america. tehran. city of nearly 8 million people. what do iranians want to eat capital of iran. traveling by camel, by foot all it feels like there are neighborhoods of rome that's today? it is a home cooking culture. i mean -- passed along these same routes. this right here, a stop on what >> yes. but this morning, a city i've never been to built like these. after all this time i finally had my chance to see a country we didn't have the culture of felt like one i already knew. i'd heard so much about. eating out. the weather is nice. this is a culture of sacred i don't know what i was i just wanted to thank you expecting, but it's nice. foods in the house. for sharing your world with me. a big blank spot on nearly every it felt like home. traveler's resume. things which are unheard of. merci. it's not in the book. airbnb. belong anywhere. delicious. >> that's really interesting. thank you. >> once upon a time there was an >> a lot of secrets. ancient kingdom where they found >> have you ever tried a lot of magical black stuff under the ground. traditional iranian food? >> it's difficult because everybody says the great food of iran is cooked in people's