Tell me more about this structure, strange humanoid.
This wall? Oh, it was built back in 122 by the Roman Emperor Hadrian.
And what are these "walls" you speak of used for?
Well, this one in particular probably defended the Romans from some barbarian horde or something, but walls are also used to protect buildings from the elements and stuff.
So that's why it's always so windy in my living room! You will tell me how to construct a "wall" immediately.
I'm so wasted right now... I can't believe this tourist guy looks like an alien holding a hair dryer.