Question: We have a site template that contains a list with columns such as title, status, manager. We use this template to create site collections. I would like to query this list item values and show them all together on a single page somewhere. As the lists span different site collections I'm guessing a content query web part is out? Any ideas how I can do this? All the site collections use a specific managed path of that helps.

Answer: 
This feature must be active "Wiki Page Home Page" feature to have the sitepages enabled.

<http://sanketinfo.blogspot.in/2012/12/how-to-enable-site-pages-document.html>

Site-Level feature comes when Pages and other style library is not present and also if you want to customize the look and feel of the site in site setting page.

**If you need them, you have a few options:**

Activate the “Wiki Page Home Page” feature. The feature will create
those libraries and will also create a wiki page and set it as the
home (welcome) page for your site.

If you only need the libraries and don’t want your home page changed,
you can have SharePoint Designer 2010 create the libraries for you:
Open SharePoint Designer.

In the “Site Objects” pane on the left, click “Site Pages.” SP Designer will load the contents of the Site Pages library and tell you it’s empty.

However, it also creates the Site Pages library for you in the process.
Do the same thing for “Site Assets” (also in the Site Objects pane). If you have code that depends on the existence of these libraries
(such as a feature receiver),

you can use two methods on the `SPListCollection`

*class to ensure the libraries are there:*

> 
> EnsureSitePagesLibrary()
> 
> 
> EnsureSiteAssetsLibrary()
> 
> 
>
If the user has deleted anything in the site, it will be in recycle bin. But if the file is removed from the recycle bin, then it will be stored anywhere.

If you are looking for default pages from the "site pages" library, then it is not a problem. You can get it from the another site/ site collection "site pages" library which is using the same site definition.