Certainly. Over history many have had private chapels in their homes / castles / etc. Saying your evening prayers, etc. is worshipping in private, isn't? You'll even find over history (recent history even) that some devote individuals have prayer benches in their private rooms - usually their bedrooms / suites for devotions. To my way of thinking - any worship should be done in private - but that's just me.
In private homes or isolated places.
House fellowship is where Christians worship with fellow-christians in private houses and not in Church buildings.
True Christians only worship Jesus, nothing else.
Christians can worship anywhere, as it is a belief, and beliefs are everywhere. Though, often Christians would gather at a church as a focal worshipping area. In their own household each believer would worship their beliefs just as common as in a church.
Primarily, Christians worship in churches on Sundays.
Christians worship on Sunday, the first day of the week. Synagogues are normally open on the Sabbath or seventh day of the week (between sunset Friday and sunset Saturday). Most Christians would not worship in a synagogue.
Christians do not worship using a mat.
Christians worship God. We often worship with our hands up in the air in worship towards God.
Christians worship everywhere. "other" Christians worship in Isreal, or Nazareth, or Bethlehem.... but Christians still worship everywhere
Christians believe him to be God and therefore worship him as God.
Muslims go to Mosques and Christians go to churches.
christians worship on Sunday friends!!