Answer

Iran is a large country with many landscapes, also deserts. But I will let the images answer your question.

Tehran

East Azerbaijan in Iran.

Bisheh watefall in Lorestan

Tehran

Tehran Azadi square

Tehran

I have added some new images:

This is the tomb of poet Saadi

This is the tomb of Poet Hafez

The tomb of Poet Khayam

Tomb of Poet Ferdowsi

Kish Island Iran

Kish Island Iran

Kish Island Iran

Kish Island Iran

Kish Island Iran

Kish Island Iran

I have updated this answer 19/01/2015, with a YouTube playlist, which has slideshows from each region in Iran. irangeo - YouTube