A statue of a dog pissing into a girl's mouth. It's a fountain. Not kidding either.

This:

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.

Having young men and some women ride public transport in full military get up including their military gun.

I've often overheard tourists talking about them with respect or feeling alarmed something crazy is going on. The funniest one, was an older American tourist asking them for directions and talking very, very, very respectfull to them. The scene was just to comical seeing a boomer being so respectfull towards 18 years old boys.

Meanwhile for us here it's the most normal thing in the world to see a bunch of recruits going home from training or going to their base by train. If anyone feels anything towards them, it's pity. Because most of them are just there because they have to and not because they want to.

For the second question: I really liked the English houses with their red brick facade. Generally a brick facade it's not something I often see here in Switzerland.

(Mostly) very good public transit in big cities and even in some smaller areas.

I personally still love to see the mountains. I grew up in a place scraped flat by glaciers in the US and seeing the mountains on a couple of sides of me every day here in Japan still feels really neat and inspiring, even a decade in.

Walking to a supermarket, riding your bicycle to work.

OP, I want you to know that you are not alone, I am also a Brit who loves seeing all the wee reptiles scooting about when he visits places that have them. We barely have any here and they're fun tiny little dinosaurs!

Edit: actually I do have a proper answer too. I'm in Scotland, which has different trespassing laws to the rest of the UK. In Scotland you have a right to roam under which you can enter any outdoor land, other than that with crops and the immediate surroundings of houses, provided you do so responsibly. There are other reasonable exceptions but the point is that you don't generally need to check for access here. The rest of the UK is far more restrictive and I have found that visitors find it incredibly weird to walk through a field of grazing sheep or similar when trying to get somewhere

Evergreen trees. I know they're a big deal to people who visit but I grew up around them and think they're kind of boring.

I live in New York City. Apparently (based on how shocked they look) tourists come from places without: Gift Shops, Theaters, Rats, Black People, Buildings, or Walking.

I'm in Tennessee. The smokey mountains. They are wonderful... But pigeon forge / Sevierville/ Gatlinburg is just a touristy blight now.

There's much better places to go than there.

Lived in the UK for a while - Squirrels, and the fact that the church in the town we lived in was built before ANY humans set foot in New Zealand

I lived in London for a few years and it always amazed me to see foxes just roaming about. I still think it's cool.

I'm from another country, foxes are not really a thing here.

Whales, northern lights, reindeer

Trees which change color in the fall

The ocean! So fascinated by it! I love it, but it is always there, waiting. No need to go to it. It will get you eventually.

cactuses

Norwegian fjords. I live here, and to me it's mundane landscape.

Cheesesteak sandwiches (Philadelphia area). It's just blocks of low-quality frozen meat fried up on a grill with some onions and cheeze-whiz (or provolone if you're not insane). The bread is good but god damn. I used to live across the street from one of the more famous steak places in center city and the line outside was almost always more than an hour long, even in rain and snow. It just made no sense. WE HAVE FUCKING MUSEUMS AND SHIT!!!

I wonder if the people in that line would have been so keen to get their horsemeat sandwich if they'd walked through the neighborhood at 6 am and seen the clear plastic bags filled with sandwich rolls just dumped on the sidewalk in front of each restaurant (yes, that is how Amoroso's delivers them). I went for a run early one morning and when I came back somebody had ripped open one of the bags and placed a roll under the windshield wipers of every car on South Street.

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.

Mountains, Great beer and legal weed.

In Southern California it's got to be the palm trees. Nope, not the ocean, the beaches, the Hollywood sign, iconic neighborhoods and buildings. It's the palm trees. Out of state relatives and coworkers always gawk at and comment on the palm tree lined streets.

Outsiders are blown away when they see cattle/horses right along the highway and roads.

Canal bridges that open to let ships through for some reason? I often see tourist making pictures of that.

South East Queensland (going from when I first moved here from Tassie) - the weather, the wild parrots and other birdlife (curlew's cries still freak me out in the middle of the night). Also, I love my resident gecko bros: they keep the insects down, and their chirping soothes me.

Bonus answer from when I was in the UK - squirrels.