Complex sentence: Danial Synagogue is the only Ashkenazi-themed synagogue in Iran that is located at 30 Tir Street (formerly known as Ghavam Al Saltaneh Street), in Tehran.
Split into simpler sentences: Danial Synagogue is the only Ashkenazi-themed synagogue in Iran. It is located at 30 Tir Street (formerly known as Ghavam Al Saltaneh Street), in Tehran.