Ohel (Hebrew: אוהל; plural: ohelim, literally, "tent")[1][2] is a structure built around a Jewish grave as a sign of prominence of the deceased.
Ohelim cover the graves of some (but not all) Hasidic Rebbes, important rabbis, tzadikim, prominent Jewish community leaders, and biblical figures.
Typically a small masonry building, an ohel may include room for visitors to pray, meditate, and light candles in honor of the deceased.
[2] In prewar Poland, the ohel of a Rebbe was located close by the Hasidic court, and was big enough to accommodate a minyan of ten men beside the grave.
[5] In the case of a Hasidic Rebbe, the ohel is a place for visitors to pray, meditate, write kvitelekh (petitionary prayer notes) and light candles in honor of the deceased.