Libya’s modern day capital. Originally founded by the Phoenicians five centuries before the birth of Christ they named it Uiat, the landing place between Sabratha and Leptis. It was then known as Oea by the Romans who slowly invaded the region forty years after the destruction of Carthage in 107 B.C. The Marco Aurelius Arch was built in 163 A.D and was made completely from marble in honour of its Emperors Marco Aurelius and Lucio Vero - the arch depicts life as it was then - with engravings of prisoners, women seated with their children and up high the two gods which were the town's protectors, Apollo anMinerva on their carriages

Today its ruin stands as magnificently as it did in the ancient Oea. Then it was known as Tarabulus after the invasion of the Arabs in 643 A.D where its modern day name originates from – Trablus. Until the 18th century Tripoli remained a small town (where the Medina is today), enclosed by its great walls and castle. Red Castle, Assai al-Hamra, which sits on the northern promontory. The massive structure comprises a labyrinth of courtyards, alleyways and houses built up over the centuries with a total area of around 13,000 sq metres (140,000 sq ft). today is home to the museum, and rightly so having lived through centuries of ups and downs of the town, of the invaders who came and went from the Roman time until today. The museum tells the story and holds the relics of Libya ’s ancient past. Tripoli gradually expanded after the Italian invasion with the construction of its wider avenues, a new cathedral and its typical Italian style buildings Tripoli Once known as the 'White Bride of the Mediterranean', Tripoli has lost much of its pristine allure, though its historic mosques and lively medina retain a good deal of character. Tripoli is .The capital and main port of Libya is a sprawling modern city with a population of about 1 million. At its heart, next to the harbour, is the old quarter or medina, on a site continuously occupied since the arrival of Phoenician traders.

To the west of the harbour, the medina is a maze of narrow alleys and covered markets; a guide is almost essential if you want to see the sights.  Facing the castle across Souk al-Mushir, the Ahmed Pasha Karamanli Mosque, 1738, is the city's largest. Not far away is the An-Naqua Mosque, a little gem from the 8th and 10th centuries with a variety of classical columns supporting the roof of its prayer hall.
For thousands of years Tripoli was considered one of the most important commercial centers in the region because it is set in one of North Africa’s best harbors. Tripoli was founded in approximately 500 BC by the Phoenicians, but since then, the Romans, Turks, Italians, Spanish and Arabs all have left their mark on the city. in Tripoli you  can  see a number of old markts(Souq’s) like Souq al-Mushir, the Souq al-Ghizdir, the Souq al-Turk and the Souq al-Rabaa. also you can see the Ottoman Clock Tower, which was built in the 19th century and was once part of the gates to the old city. and the largest mosque in the medina, the Ahmed Pasha Karamanli.

Tripoli is located on the coast of Mediterranean sea in the west part of Libyan coast .longitud =15 /latitude =31