Is this sentence wrong?
There weren’t any buildings there at all, as far as I can remember.

I think it should be (without the 2nd there):

There weren’t any buildings at all, as far as I can remember.

Question

Is this sentence wrong?
There weren’t any buildings there at all, as far as I can remember.

I think it should be (without the 2nd there):

There weren’t any buildings at all, as far as I can remember.

Answer

The sentence is fine as it is. The first "there" is a "dummy subject", with no place information. The second "there" is an adverb of place. Removing the second "there" removes information about place, changing the meaning a little, but still leaves an OK sentence.  Have a look at https://www.perfect-english-grammar.com/it-and-there.html

Answer

You can also write: As far as I can remember, there were not any buildings.