Fondly known as the 'Blue Mosque', the Sultan Salahuddin Abdul Aziz Shah Mosque is one of the largest mosques in Southeast Asia, with the capacity to accommodate 24,000 worshippers at any one time. It has the distinction of having the world's tallest minarets and biggest dome.

The three-level structure incorporates elements of Islamic and Malay architecture. The fully-carpeted and air-conditioned main prayer hall, one of the largest in the world, occupies two levels, with the upper gallery reserved for women worshippers. The second floor houses a gallery, while on the the ground floor are the administrative office, conference rooms, library, reception and lecture rooms.

beautiful 51.2m-diameter blue and silver dome soars to a height of 106.7m above the ground -- the largest religious dome in the world. It has a special traditional design set off by a special rosette of Quranic verses, and its outer surface is clad with a vitreous enamel-baked triangular steel panel.

The majestic dome is guarded by four minarets which rise 142.2m in the air, making them the world's tallest.

Inside the mosque, attention has been paid to fine detail via decorative khat (Arabic calligraphy) on the inner curve of the dome and on selected inner curve of the dome and parts of the walls in the main prayer hall. The calligraphy is the work of famous Egyptian calligrapher Shiekh Abdel Moneim Mohamed Ali El Sharkawi, who was assisted by local designers.

The mosque's carved timber mimbar (pulpit) is the creation of master craftsmen from Kelantan, who modelled it after those found in traditional mosques in the country.

Intricately designed aluminium grills are another feature found on walls, doorways and windows. In the latter, they are complemented by stained glass that allows subdued light through. This is further accentuated by the high ceiling which is lined with triangular panels of red balau and ramin timber wood set in a criss-cross fashion. Pinball lights set in the ceiling are reminiscent of a starlit sky.