I visited the National Mosque in Kuala Lumpur between services. I would not be allowed to take photos otherwise. But, mosques are almost always open to anyone that wants to come in to pray or relax, like this gentleman is doing. Sometimes, on very hot days in these Muslim countries, I will go into mosques to relax too. They are often air-conditioned and I just sit on the floor with all my equipment and relax/meditate. Running around all day long in the heat can really get to ya.