Also on these boards
Shah Mosque, Naghsh-i Jahan Square, Isfahan, Iran. Renamed to Imam Mosque after Islamic Revolution | Sebastia Giralt via flickr
Badab-e Surt, Iran “Badab-e Surt is a natural site in Mazandaran Province in northern Iran. It compromises a range of stepped travertine terrace formations that have been created over thousands of years as flowing water from two mineral hot springs cooled and deposited carbonate minerals on the mountainside.”
Pamukkale, Turkey These strange formations are travertine, a form of limestone deposited by mineral springs, especially hot springs. Travertine is formed by a process of rapid precipitation of calcium carbonate, often at the mouth of a hot spring or in a limestone cave. In the latter, it can form stalactites, stalagmites, and other speleothems.
Naqsh-e Rajab is an archaeological site just east of Istakhr and about 12 km north of Persepolis. Together with Naqsh-e Rustam, which lies less than a kilometer away, the site is part of the Marvdasht cultural complex. Naqsh-e Rajab is the site of four limestone rockface inscriptions and bas-reliefs that date to the early Sassanid era.
Sheikh Safi al-Din Khānegāh and Shrine Ensemble (Persian: مجموعه آرامگاه و خانقاه شیخ صفی الدین) is the tomb of Sheikh Safi-ad-din Ardabili located in Ardabil, Iran. In 2010, it was registered on the UNESCO World Heritage List