Jameh Mosque of Kashan - Credit: Wikimedia Commons
The Jameh mosque of Kashan is the oldest historical structure in Kashan, Iran. Its only brick minaret is located in its southeastern corner. On the bottom part of the minaret, there is a kufic inscription made by embossed brick. On the inscription, it is mentioned the construction date of the minaret, which is 1074 AD. The minaret is the third oldest minaret in Iran, which has an inscription.' Read more on Wikipedia
Source: en.wikipedia.org