Avicenna Mausoleum — Dedicated to the Iranian polymath Avicenna, the complex includes a library, a small museum, and a spindle-shaped tower inspired by the Ziyarid-era Kavus Tower
Photo Credit: By Nick Taylor - originally posted to Flickr as Avicenna Mausoleum, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=4583611