Harmandir Sahib or Golden Temple, Amritsar, Punjab, North India, is the holy place of worship of Sikhism (a religion in India). Initially built by the fifth Sikh Guru, Guru Arjan in the 16 CE, it was rebuilt in 18 CE by Jessa Singh Ahluwalia. Maharaja Ranjit Singh covered the upper floors with Gold and hence named, ‘Golden Temple’. There are four entrances to signify that any person of any religion, gender, caste, etc. can visit this shrine and people need to go down the steps to enter. More info/pics here.