The Blue Mosque, also known as the Turquoise Mosque or Kabud Mosque, is a historic mosque located in Tabriz, Iran. It was built during the reign of Jahan Shah of the Kara Koyunlu dynasty in the 15th century, and is renowned for its stunning blue-tiled mosaics that adorn the mosque's interior.

The mosque has a distinct blue hue due to the extensive use of blue tiles, which are decorated with intricate floral and geometric patterns. The exterior of the mosque is also decorated with mosaic tiles, including calligraphic inscriptions in Arabic and Persian.

The Blue Mosque was severely damaged by an earthquake in 1779, and was subsequently rebuilt in the 19th century during the Qajar dynasty. The mosque was further restored in the 20th century, and today stands as one of the most important historical and architectural sites in Tabriz.

The mosque features a large central courtyard, flanked by two prayer halls on either side. The main prayer hall has a large dome and is surrounded by smaller domes and vaults. The mosque also contains a number of other chambers and rooms, including a library and a museum that displays a collection of ancient Islamic manuscripts.

Visitors to the Blue Mosque can enjoy its stunning architecture and intricate tilework, as well as the peaceful atmosphere of the mosque's prayer halls and courtyards. The mosque is open to visitors year-round, and is a must-see attraction for anyone interested in the rich cultural and architectural heritage of Iran.