How Does Something So Mammoth Disappear

One by one, city towers disappear And we're wondering, were they ever here Or were we hurdled back in times past? It's queer It's peculiar they no longer uprear How does something so mammoth disappear And yet our skylines a full concrete tier That just seconds from now might reappear It's easier believing they weren't here But skylines are tainted patchworks of glass It's a marvel to us, lower-class? Head scratching—wondering should I disappear? Would they notice I'm gone, no longer here? Odd asking egotistical questions Shrewd in knowledge, we've fewer perceptions.