Klang River in the context of "Flash flood"

The Titiwangsa Mountains (Malay: Banjaran Titiwangsa, pronounced [ˈband͡ʒaˈran titiwaŋˈsa]), also known as Banjaran Besar (lit. 'main range') by locals, is the chain of mountains that forms the backbone of the Malay Peninsula. The northern section of the range is in southern Thailand, where it is known as the Sankalakhiri Range (Thai: ทิวเขาสันกาลาคีรี; RTGS: Thio Khao Sankalakhiri; pronounced [tʰīw kʰǎw sǎn.kāːlāːkʰīːrīː]).

The mountain range acts as a natural divider, dividing Peninsular Malaysia, as well as southernmost Thailand, into east and west coast regions. It also serves as a drainage divide of some major rivers of Peninsular Malaysia such as the Pahang, Perak, Kelantan, Klang and Muar. The length of mountain range is about 480 km from north to south.

Jamek Mosque, officially Sultan Abdul Samad Jamek Mosque (Malay: Masjid Jamek Sultan Abdul Samad) is one of the oldest mosques in Kuala Lumpur, Malaysia. It is located at the confluence of the Klang and Gombak rivers and may be accessed via Jalan Tun Perak. The mosque was designed by British architect and soldier Arthur Benison Hubback, and built in 1909. It was the principal mosque of Kuala Lumpur until the construction of the national mosque Masjid Negara in 1965.

The name "Jamek" is the Malay equivalent of the Arabic word jāmiʿ (جامع) meaning a place where people congregate to worship. It is also referred to as "Friday Mosque" by the locals.

The Johor Sultanate (Malay: Kesultanan Johor or کسلطانن جوهر; also called the Sultanate of Johor, Johor-Pahang-Riau-Lingga, or the Johor Empire) was founded by Sultan of Malacca Mahmud Shah's son, Alauddin Riayat Shah II in 1528.

Prior to being a sultanate of its own right, Johor had been part of the Malaccan Sultanate before the Portuguese captured its capital in 1511. At its height, the sultanate controlled territory in what is now modern-day Johor, Pahang, Terengganu, territories stretching from the rivers of Klang to the Linggi and Tanjung Tuan, situated respectively in Selangor, Negeri Sembilan and Malacca (as an exclave), Singapore, Pulau Tinggi and other islands off the east coast of the Malay Peninsula, the Karimun Islands, the islands of Bintan, Bulang, Lingga and Bunguran, and Bengkalis, Kampar and Siak in Sumatra.

The Gombak River (Malay: Sungai Gombak) is a river which flows through Selangor and Kuala Lumpur in Malaysia. It is a tributary of the Klang River. The point where it meets the Klang River is the origin of Kuala Lumpur's name.

Gombak River used to be called the Sungai Lumpur. Kuala Lumpur's name was taken as it was located in Sungai Lumpur's confluence or "Kuala Lumpur".

The Royal Museum (Malay: Muzium Diraja) along Jalan Istana was the former National Palace (Istana Negara) and former residence of the Yang di-Pertuan Agong (Supreme King) of Malaysia. It stands on a 13-acre (50,000 m) site, located on a commanding position on the slope of a hill of Bukit Petaling overlooking the Klang River, along Jalan Syed Putra.

It was replaced by the new national palace as the official residence of the king in 2011. In 2013, it was converted into the Royal Museum and referred as Old Istana Negara.