Tomb of Ibn Sina called Abu Ali
The mausoleum of Ibn Sina was built in 1952 above the tomb of one of Persia's greatest philosophers and scholars.  Born near Bokhara about the year 980, he lived a full and dangerous life, serving a variety of rival princes as a physician and vizir.  He died at age of 57 in Hamedan.  His work is considered among the first systematic work of medical science and were taught in European universities until the eighteen century.  His contributions to philosophy, logic, mathematics, optics and pharmaceutics makes him one of the most prolific and original thinkers of all time.