Practically every house and apartment has (access to) a sauna. If not inside the apartment, there will most often be a shared sauna in the basement.

About the UK, I'm going to go a bit deeper and note that it was somehow eye-opening that there's a whole society that actually just daily drives English. For my whole life before the visits to UK and later US, English was the language of the internet and some specific international situations where it was most people's second language. Until well into my mid-20s, I basically didn't have real life contact with any community that would just speak English natively, despite speaking it myself fairly okay-ish.

I live in the Canadian prairies.

One time I was flyin' down the highway and I noticed a man with car parked on the shoulder, staring out into a farmer's field of flowering Canola.

I stopped because I could think of no reason other than he's had car trouble, and is staring off into the distance trying to figure out WTF he's gonna do now.

He explained to me that he wasn't having car troubles, that he was on a visit from Hong Kong and it's the first time he's ever traveled outside. He told me that from the structure of the city and sky rise density, he'd basically never seen a patch of sky or open land. The biggest patch of sky that he'd ever seen would be about the size of a 2 packs of cigarettes held at arms length.

Woah.

And here we have the joke that the terrain is so flat and monotone that you can watch your dog run away for 7 hours.

I live in the US northeast coast in a touristy area. People have been surprised to see: white beach sand, seashells, docks, boats, seagulls, deer, opossums. I could go on. I get most people don’t live coastal, so none of these reactions surprised me except the white sand one. Apparently a lot of lakes in the mainland just have dirt at their shores. Never would’ve guessed.

Apfelschorle

I moved to the midwest USA 15 years ago and I still can't get over the trees screaming at me. It's deafening but no one seems to care.

The trees are silent where I come from

Penguins, the biggest desert on the planet, snow blindness

I live near the Rocky Mountain line so I've seen it many times. People I've met in other cities I've lived in always say they're jealous that I'm close to such a place but live there long enough and they just become another mountain

So I do Uber in a small town tourist trap in a very red state. Convention center has a gun show what seems like every other month. I picked up some people from another country at the hotel next to the convention center on one of these all too common days. A dude was in the cross walk with some kinda hunting rifle on his back, and they immediately started trying to take pictures. Granted I have never seen the dude at McDonald's/Baskin Robbins with an AR strap to himself and two other pistols on his hip, so this city is at least that civilized.

Leaves.

Yes, tree leaves.

Each fall when they start changing color flocks of tourists come up to gawk at them.

Depositing bottles.

Put them into a machine, and it gives you money back 🤯

Niagara Falls. It's spectacular to visitors but for me it's right there so it's just a bunch of water falling off a ledge.