I am an avid reader of the Icelandic website Lemúrinn, which can be described as a website about pretty much everything. Today I stumbled upon a great article featuring old pictures from Hekla volcano, taken by English photographer Frederic W.W. Howell somewhere in the years 1890-1900. I thought it ideal to share this, and you can thus access the article and the pictures here.
I also thought I'd share a great piece written by Icelandic composer Jón Leifs, called Hekla, Op. 52, inspired by the volcano. The video features more pictures from the volcano:
The legendary Hekla is definitely THE volcano to visit when in Iceland. The Hekla link above will also guide you to some great Hekla-tours (below the Iceland Guide-description). Make sure to check them out! :)