They worship in a temple sort of thing called a mosque.
Muslims.
Unbelievers can worship but when and if they do they cease being non-believers unless they worship their unbelief.
For Christians at least music has become another form of worship and even today there are contemporary songs written that involve praise and worship so that devout believers and regular believers can listen to that and worship the Lord.
Islamic people worship a god called banana
Jewish
Imams
In the Mosque.
godd.
Islamic acts of worship are called ( ibadah )
Muslims
worship god
A mosque is an Islamic place of worship.