Outer tangenziale (ringroad) around Milan. Lets you avoid a lot of traffic, I always take it when leaving Linate, even if don't expect traffic.
Not gonna name the road for hopefully obvious reasons, but there's a back road near me that's named after a town that used to be along it's side back in the 1910s, before it burned down. It's a state highway now, and it connects my town to another town about 40 minutes. There are no stores, attractions, businesses, etc on it. There's an interstate that also connects the two, that only takes 15 minutes. I always take that back road. That stretch of interstate is prone to rock slides, and that's my excuse, but in reality, I just love that drive. It's almost entirely state land, forested, a couple really nice meadows. About half of it is paved, half is gravel. I love it so much. I rarely have a reason to go to that other town, but sometimes I just make the drive to make the drive.
Does the interstate that takes 15 minutes actually take 15 minutes? If that interstate is crazy congested, the state highway might actually be faster. Or maybe this is some rural part of America, I don't know.
That's how I found it, actually. We were new to the area (and it is rural), and there was a rock slide on the interstate that blocked traffic for a couple days, and I needed to get to a mechanic that was over there. Had to find an alternate route. Never looked back since. Lol.
But yes, unless there's a rock slide, wreck, or they've closed it for construction, it generally takes 15-20 minutes.
Living in Louisiana, the interstates are the only roads that are anything regularly maintained. So Ill pick them over any other road
Interstate 97 in Maryland, from Annapolis to Baltimore. It's almost always running smoothly with a 65mph speed limit. It's just a no-bullshit fast straight run every day. Scenery is ass but that's Maryland.