Tell us what you've seen in faraway forgotten landsThat's how it's rendered in the liner notes, although - appropriate to their having been forgotten - the word "lands" is cut off:
Where empires have turned back to sand
In any case, this image of "empires... turn[ing] back to sand" reminded me of Percy Bysshe Shelley's poem "Ozymandias." It has the same image of a once-vast domain that has since "decay[ed]" so that only "lone and level sands" and fragments of a statue remain.
There really isn't anything else in "Lovely to See You" that seems connected to "Ozymandias," but between the same image of "empires... turn[ing] back to sand" and the land(s)/sand rhyme (which is also in "Ozymandias"), I think Shelley's poem might have influenced "Lovely to See You," if only slightly.