Synagogues are Jewish places of prayer.
Yes, this is the main place of worship but Jews may pray in other places as well.
Churches.
Synagogues are places of communal worship, places of study, and places where life cycle events are celebrated.
There are many thousands of synagogues across the world.
Where you worship depends on your religion, not your nationality. People in Poland worship in many different types of places. Most Christians in Poland worship in a church, because Christians worship in a church. Most Jews in Poland worship in a temple or synogogue, because that is where Jews worship. Muslims in Poland worship in Mosques, because that is where Muslims worship. Many religions (including Christians, Jews, and Muslims) also worship at home.
Synagogues are places where Jews meet for worship and study.
Judaism. The worship of the one true god, Yaweah.
Jews worship only the One God.
"Judaism" is not something that is itself venerated. Jews worship God and do so by the rites and rituals prescribed by Judaism. Jews pray at Synagogues.
Jews do not worship "activities"; they worship the singular God.
Jews face in the direction of Jerusalem when they worship.
The Jewish house of worship is called synagogue, although Jews can worship G-d anywhere at any time.