Roads. It is pretty common around where I grew up to notice you are in a different states when there is a sudden shift in road conditions. They never communicated about when to do repairs or anything, so it was almost always an obvious line between either a really shit road and a smooth one, or vice versa. Sometimes you could even tell based on the noise or feel of the road, if the other state uses different road construction materials.

It’s usually on a highway and highways usually have a “Welcome to …” sign at the border.

Today go to absolute shit crossing from Ohio into Indiana. And it’s not like we have exactly great roads here…

I can sometimes tell what county (not country) I am in from differences in the design of street signs (mostly the street name signs at stop lights), changes to the look of highway overpasses, and whether or not Flock cameras outnumber people.

Between States with more or less lax laws on liquor, firearms, explosives, tobacco, etc, there’s usually various merchants immediately on the side of the border with more lax laws.

Because they go through the door in the border wall to Mexico.

Yeah, the roads instantly change color and texture. If you cross into south carolina, BAM. All the roads are whiter and rougher.

There are 50 states and a lot of different border arrangements. If a border is something dramatic like a river and you know that’s the state border you can tell.

Often the only way to tell is a change in road surface or signage, or the “Welcome to state” sign. Google navigation will tell you too.

I live on a border and my jogging path cuts through one state and then rounds back home to the other. The only way you can tell a difference is the states have different paving and road work schedules, so usually one state has more shitty roads then the other.

field on one side, field on the other. if I am on the interstate, the surface gets really shitty on our side because brownback and the republicans in topeka drained the highway fund to give the koch bros and fat corpo-farmers a tax break.

Heading west out of Connecticut into New York the most obvious difference is they don’t trim tree branches over the road/power lines. It suddenly feels like you’re driving through a tunnel of green. Its actually quite nice but those parts of nys must have a lot of outages after storms.

North Carolina paves its roads. South Carolina air drops its roads.

You know you have crossed into South Carolina when the suspension of your vehicle is torn out from under you.

I pay money to cross a large river.

It usually depends on how big the road is that you’re driving on. Most state borders are in very extremely rural areas, so sometimes there’s not even a sign. On interstate highways it’s always quite obvious, but little country roads might not have any signage at all.

• There’s usually no obvious change in architecture, no; often the only architecture is farm buildings, and those are more or less consistent architecturally. And broadly speaking architecture is regional, rather than state-specific; the difference in architecture from northern Indiana to southern Indiana is far more pronounced than the difference in architecture from southern Indiana to northern Kentucky, for instance.

• As noted elsewhere, sometimes the infrastructure can be different (usually seen in road quality), but most states tend to number their county roads in different ways, so when you cross the border you’ll often find that the number of the roads you’re crossing tend to suddenly shift from “300W” to “2300E.” The signage may also change very slightly, though if you’re truly out in the middle of nowhere, there might not be any signage to change.

• Agriculture, like architecture, is usually much more defined by region than by state. All of the states around mine farm corn, wheat, and soybeans, just like mine does. Most also farm cows, though Kentucky notably has a lot more horses than any of its neighbors, so that can be a tell. But you don’t get into a ton of ranching until you get further west, and then you see large changes across multiple states at a time.

• Store brands often do change, but again, since most crossings are in rural areas, there often aren’t any stores around to notice the change right away. You’ll roll out of a state with a lot of Meijer stores and into a state where Publix is the regional grocery store, but until you get into a town, there’s no way to know.

• Culture is probably the thing you’ll notice least. People who live in rural areas tend to think of themselves as American before any other identifier, so you’ll find a lot of jingoism anywhere on both sides of any border. American flags, Christian crosses, gigantic emotional support pickup trucks, bizarrely aggressive patriotic bumper stickers, Trump signs and flags, etc. Depending on where you are those sorts of things are accompanied by very clear signs of deep poverty (mobile homes, trash-strewn lawns, run-down houses), but they can just as often be on or around very well-kept houses on huge acreage.

• And if you mean “culture” in the sense of theater, music, etc., you’re unlikely to find any at all near a state border.

I guess the other thing is that Google Maps will tell you “Welcome to (state)” when you’re navigating. There are some times that that’s the only way you’ll know.