Pekanbaru is the capital of Riau province, Indonesia. The Siak river divides this city. Siak is the deepest river in Indonesia. Sultan Syarif Qasyim II is the most luxurious airport in Sumatra but not the biggest one. In this city, there is a miniature of Riau province like Taman Mini as Indonesia miniature in Jakarta. As a business city, Pekanbaru has the biggest mall in Sumatra, bigger than the one in Medan.