according to the national travel and tourism office, with over 20 million visits in 2015 alone, whatst tourists to the u.s.? >> wow. when i was reading the question to myself, i had two or three of these answers in my head. um... let's see. i mean, canada is our neighbor, so i would imagine that there would be a lot of people that come see us. um... japan...maybe. um, there's a lot of people in china, and there's a lot of tourism. and the uk... i don't think the population of the uk could handle 20 million visits. um... i'm gonna use my plus one. >> final? >> yes. >> all right, your boyfriend lincoln. come on down. [cheers and applause] how you doing, bud? >> good. hey, baby. >> hi. >> what do you think, lincoln? >> okay, so i'm also not 100% sure of this. uh, i agree with what you said about the uk and that the population's a little small. i think that's also true of canada though. i think there's only, like, 30 million people who live in canada. before any of the answer choices came up, my gut was china. it's just so big. i mean... >> that's true. >> there's over a billion people t