Yeah, the conventional ones still draw a good chunk of power, and they're not clean but they're not dirty. Same as how a grocery store isn't good for the environment but you're not looking at them first for places to clean.

They tend to be boring, and are usually not a public thing but just something owned by a company to house their computers. The only reason I know about the ones near me is I used to work at one and people would move jobs to or from other ones. (As an aside, a datacenter is a great place to nap if you like white noise).

For a sense of scale:

This is the site of an open AI data center. The yellow square is about 1 square mile and mostly encompasses the area they plan to/have filled.

That angle shows more build out.

This photo has two normal data centers in it. The yellow square is also about 1 square mile. I've highlighted the data centers in red. One is to the left of the square near the middle, and the other is down from the right side near the big piles of what looks like rocks. (Spoilers: it's rocks. They make asphalt). The sprawling complex in the upper right is a refrigerated grocery store distribution complex. The middle on the other side of the block from the asphalt is a coal power plant.

Of the things in this picture, I'm most upset about the giant freeway interchange. Coal is shit, but it's a modern plant so it's not belching soot, just co2, and the utility is phasing it out anyway. The grocery traffic is mostly dead except between the hours of midnight and 7am when they do restocks.
I can hear the freeway if I go outside.