<figure> is for wrapping your image content around it, and <figcaption> is to caption your image.
<figure>
<img src="https://en.wikipedia.org/wiki/File:Shadow_of_Mordor_cover_art.jpg" alt="Shadow of Mordor" />
<figcaption>Cover art for Middle-earth: Shadow of Mordor</figcaption>
</figure>