Chirag Gala, also spelled Çiraq Qala or Çirax Qala, which means lamp (or light) castle in Azerbaijani

Azerbaijani language

Azerbaijani or Azeri or Torki is a language belonging to the Turkic language family, spoken in southwestern Asia by the Azerbaijani people, primarily in Azerbaijan and northwestern Iran...

 is a ruined ancient fortress overlooking the Caspian

Caspian Sea

The Caspian Sea is the largest enclosed body of water on Earth by area, variously classed as the world's largest lake or a full-fledged sea. The sea has a surface area of and a volume of...

 coastal plains north of Baku

Baku

Baku , sometimes spelled as Baki or Bakou, is the capital and largest city of Azerbaijan, as well as the largest city on the Caspian Sea and of the Caucasus region. It is located on the southern shore of the Absheron Peninsula, which projects into the Caspian Sea. The city consists of two principal...

 in Azerbaijan

Azerbaijan

Azerbaijan , officially the Republic of Azerbaijan is the largest country in the Caucasus region of Eurasia. Located at the crossroads of Western Asia and Eastern Europe, it is bounded by the Caspian Sea to the east, Russia to the north, Georgia to the northwest, Armenia to the west, and Iran to...

. Its located on the top of a mountain, in the Guba Forest. It was constructed by the Sassanid Persians in the 5th century, it was used as a defense for the khanate of Quba

Quba

Quba is a rayon in northeastern Azerbaijan. The capital is located on the Kudyal River at 41.37°N, 48.50°E....

in the 18th century.

Today the Chirag Gala is a historic site and it frequently visited by tourists. Because of the large rocks and rough road the Chirag Gala is almost impossible to reach with any vehicle. Most tourists and people travel by foot to the top of the mountain.