As many people have noticed, we have added a button to a few pages.
That button would be this one:
What this button means is there is more information that comes with this building etc. For example, we have the Sculptor. This has a button because it has an add-on page explaining Idols. You will find them on the page near the focus point, such as at the bottom corner of building images. I hope this helps people to understand what it actually is, as some people have been confused.
Here is the list of pages that have add-on page buttons so far:
I have to agree with Lugia on this, the Sculptor should not have a separate page for its statues. Everything can be fitted on one page. This would like like making a new page for each obstacle in Clash of Clans.