Since 5 centuries ago, once declared the world discovered of Ras Al-Ragaa Al-Saleh road, enabled them to rally round the African continent, the Portuguese colonized accidentally stepped his feet land on Bahrain, that island overlooking the Arabian Gulf, to begin with, a new phase of the colonization of the East, it wasn`t as difficult as they imagine it, the East was suffered from the weakness, under state succession was weak in Istanbul.

A huge stone building, what drew the attention of the Portuguese, revealing strategy with a view to the Gulf Coast, controller gives the ability to control the Bahrain Island, a large Castle was built over a century ago, as a garrison used to it throughout the period of the occupation of Bahrain, from 1521 until 1602, that`s why they built the headquarters of the commander, they make some other plugins, they expand the back wall of the Castle, and built 4 other towers with a square.

"Bahrain fort".. Or what was called "Delmon" Castle, relative to a great civilization in Bahrain and Eastern Arabic Island, a region defined by the Sumerians in Fardos "heaven" floor, discovered in 1950s, came the Danish mission led by Baider Willem Globe and Jeffery BB, then it became a major location for the French archaeological researcher mission, Apartment location was found inside it was a lookout from the year 2300 BC and until the 18^th century.

Seef district is one of the Bahrain suburbs, Bahrain`s fort was built on the Eastern edges, most trade stations between Persia and Mesopotamia countries, Eastern the Arab Peninsula, Central Asia, and Hindu Valley area, this location became the subject of a major international competition, during Islamic times, to testify to that successive amendments made to the Castle which crowns the location today.

Observed in Bahrain fort as a different model for each architectural models of forts established in medieval times, it wasn`t just a huge stone building as the rest of the other castles, it consists of several large parts was over successive stages, so it is one of the rare locations that contain layers accumulated archaeological dating back to the late bronze age in the Persian Gulf, to testify to the first human settlements since the year 2200 BC, the progressive location migration ended, during the 17^th century ad.

As for the castle building history, had begun in the rein of the kings Hormus, that kingdom which was founded in the 10^th century ad, it was just a small fort was built by the local rulers in the 14^th century ad, building dating back to different period, consist of 4 circular towers, in each corner tower and some rooms for ammunition, the rooms for the troops, in the 15^th century the local rulers to extend the Castle from the outside, so they built a bailey behind the original, with the addition of new circular towers, two towers in the     middle of the West bailey, and two  another in Northern and Southern baileys.

Islamic civilization has its impact on Bahrain fort; this seems obvious on the North side of the city bailey, where there is an Islamic fortress, which was built from 100 to 1400 ad, square shaped building, the length of each side of ribs 52 meters, in every corner of a circular tower, in the middle of each half circle-shaped tower bailey, except the West bailey, it mediates two towers shaped like a quarter circle, where were the main entrance, in each tower slots for archery, mediate square courtyard in four corridors is perpendicular and open up on it, there are many collections of rooms and stapled to store and extract dates juice, or call it "Syrup" juice.

The Castle has growing in importance lately after the opening of the Museum tells the story of that historic city, Museum featuring 5 halls timeline different, each hall tell a different era the Arab Peninsula experienced, Museum features 500 archeological story, one of the most important collections from the site during archaeological excavations, tell us the historical periods ranging from Delmon and Tailos until the Islamic era, there are artifacts documenting the copper and Bronze smelting process which began during the iron age, specifically, during the period between 550-500 BC, where the two metals are used in abundance at that time inside the Castle via a workshop located in the big building.

Bahrain fort Museum isn`t just a halls to show some archaeological, but is a theatre to show the history of a region which has for thousands of years a major Harbor Island, and Center of the capital oh "Delmon", that was considered the most important civilization in the Gulf since the end of the third to the middle of the first millennium BC, as a trading station was between East and West, the castle was registered as an archaeological site under the UNESCO World Heritage list in 2005, built over 4000 years of continuous occupation.