Tomb of Esther and Mordechai

The Tomb of Esther and Mordechai is located in Hamadan, Iran. Iranian Jews believe it houses the remains of the biblical Queen Esther and her cousin Mordechai, and is the most important pilgrimage site for Jews in Iran. There is no mention of it in either the Bavli or the Jerusalem Talmud and the Iranian Jewish tradition has not been supported by Jews beyond Iran.

Source: Wikipedia