So, Pettah means Colombo 11. This is one of the oldest areas of Colombo and exploring the streets is an exciting adventure. The streets are full of different sounds and smells, and you find shops, stalls, and markets everywhere you go. And, in-between, you will come across some of the country's most famous churches and Muslim mosques as well. Pettah also has the Dutch Period Museum which was once the Dutch Governor's residence. Periodically, this building has served as a Catholic seminary, a military hospital, a police station, and a post office, and now is a museum that houses many colonial styled furniture and artefacts.