This is a featured post for Art Exhibitions. It will redirect to the Exhibitions category page. You can always change where the post redirects by editing the “Quick Page/Post Redirect” window, on the Edit Post page.
This is an example of a featured post. When you write a featured post, checkmark the “Featured” category box, which is one of the boxes on the right-hand side of the window. Then add a Featured Image (also on the right-hand side). Be sure that it is sized at 735px x 300 px so that it will fit in the slideshow on the front page.
When a post no longer needs to be featured, just edit it, and uncheck the “Featured” category box.
By the way, you can also checkmark a post as “Featured”, as well as an “Event” or “Exhibition” or whatever the post may be. That way, even if the post is no longer featured, it will still be archived in the appropriate category.