does anyone else experience the illusion that this buliding gets wider as it gets higher?

yes!

Yes

not exactly but it's a shifty wriggly beast throughout because of the patterning of its features.

sef_lopod: yeah, it's the pattern on the facade that does it.

luna_y_gatos:

if the effect is related to the patterns of the shades, or if it's related to the angle the picture was shot from... Hm... It does feel that there's a regularity to the patterns of the greys that is "not quite obvious".

sees that ilussion