This is not the main part of Istiqlal Mosque, the biggest mosque in Southeast Asia. But still part of the building. This is architecture photography: Istiqlal Mosque.
About Architecture Photography: Istiqlal Mosque
Sony A58 with Tamron DC 18-200mm f/3.5-6.3, 228 seconds f/13 ISO100
This photo is the corner of the exterior building of Istiqlal Mosque. Even though it looks like one part building, but actually there are two. First the bottom part, which is the actual corner of the mosque; the second part is the tower which is far behind the mosque. With right photography perspective, it looks like one architecture. This photo is taken this way on purpose. Converted to black and white in post-processing.