The Mausoleum of Avicenna, also known as the Tomb of Abu Ali Sina, is a mausoleum and history museum complex, located at Avicenna Square, in the city of Hamadan, in the province of Hamadan, Iran. Dedicated to the Persian polymath Avicenna, the complex includes a library, a small museum, and a spindle-shaped 28-metre-high (92 ft) tower inspired by the Ziyarid-era Kavus Tower.