Inconsistent left and right margins
This is most noticeable on mobile, but is the same with a desktop browser: none of the left, resp. right margins line up.
On the left this is the title text, the left border of the search box, the left side of the zoom buttons and the left side of the help button, On the right this is the right side of the menu button, the right side of the search box and the right side of the imagery button.