There are at least SIX world religions having a form of the Golden Rule...
Hinduism (Krishna): "Do not to others what ye do not wish done to yourself; and wish for others too what ye desire and long for, for yourself." (c. 2900 BCE)
Judaism (Moses): "Thou shalt love thy neighbor as thyself." (c. 1300 BCE)
Buddhism (Gautama Buddha): "Make thine own self the measure of the others, and so abstain from causing hurt to them." (563 BCE)
Christianity (Jesus): "As ye would that men should do to you, do ye also to them likewise." (30 CE)
Islam (Muhammad): "None of you truly believes until he wishes for his brother what he wishes for himself." (621 CE)
Baha'i (Baha'u'llah): "Choose thou for thy neighbor that which thou choosest for thyself." (1863 CE)
The Golden Rule can be found in the scriptures of all the world's major religions.
The Golden Temple is used by Sikhs mostly. But other people from other religions or countries are not forbidden to use it. It is open to all.
Oman is a Muslim country in which you will rarely see other religions.
Buddhism. Other Indian religions are grouped together under the term, Hinduism.
Deities, rituals, and congregations tend to be common to most traditions.
Other than what? - Various religions have been divided into sects; this seems to be something like a general tendency.
Christianity and Islam
It is unclear what the "other" religions are from the perspective of this question. Please read the Related Question which discusses all three major religions that make claims to Jerusalem. All other religions are not affected by that city except tangentially through the three monotheisms.
Buddhism and Hinduism
The United States has hundreds of languages spoken within its borders, but English is the dominant language. In terms of major religions, Christianity is the most widely practiced, followed by other faiths such as Judaism, Islam, Buddhism, and Hinduism.
There are a lot of religions but the major ones are Islam, Christianity, Hinduism and Buddhism. Remember there are a bunch of other smaller religions. A medium sized religion is for an instance sikhism.
Shinto and Buddhism are the major religions in Japan. Most Japanese people do not define themselves as following only one or the other, but tend to incorporate elements of both in their spiritual life, so it would be very difficult to say which is the one major religion.
Unlike other religions, Judaism is not centralised and there is no one leader.