Question: Nachum Dov Brayer was crowned Boyaner Rebbe on the holiday commemorating the rededication of what edifice in Jerusalem?
Context: Elimelech Weisblum of Lizhensk (1717–March 11, 1787), a Rabbi and one of the great founding Rebbes of the Hasidic movement, was known after his hometown, Leżajsk (Yiddish: ליזשענסק-"Lizhensk"‎ ) near Rzeszów in Poland.  He was part of the inner "Chevraya Kadisha" (Holy Society) school of the Maggid Rebbe Dov Ber of Mezeritch (second leader of the Hasidic movement), who became the decentralised, third generation leadership after the passing of Rebbe Dov Ber in 1772.  Their dissemination to new areas of Eastern Europe led the movement's rapid revivalist expansion. Grand Rabbi Yochanan Shochet, is the Loitzker Rebbe.  He is the rebbe of a chasidic community in Jerusalem, Israel.  He is a brother of the rebbe of Stolin.  He has followers in Jerusalem, Israel, in Toronto, Ontario, in Lakewood, New Jersey, and across the globe.  His maternal grandfather and namesake, Grand Rabbi Yochonon Perlow was the Karliner Rebbe in Lutsk, and later (after the Holocaust), in Williamsburg, Brooklyn. Mordechai Rokeach (1902 – 17 November 1949), also known as Mordechai of Bilgoray, was a scion of the Belzer Hasidic dynasty and the right-hand man to his half-brother, Rebbe Aharon of Belz, the fourth Belzer Rebbe.  He was the son (by the second marriage) of the third Belzer Rebbe, Rebbe Yissachar Dov Rokeach.  His only son, Yissachar Dov Rokeach, is the fifth and current Belzer Rebbe. Jerusalem Day (Hebrew: יום ירושלים‎ ‎ , "Yom Yerushalayim") is an Israeli national holiday commemorating the reunification of Jerusalem and the establishment of Israeli control over the Old City in the aftermath of the June 1967 Six-Day War.  The day is officially marked by state ceremonies and memorial services. Nachum Dov Brayer (born 15 April 1959) is the Rebbe of the Boyan Hasidic dynasty.  He is the grandson of the former Boyaner Rebbe of New York, Rabbi Mordechai Shlomo Friedman.  On Hanukkah 1984, at the age of 25, he was crowned Boyaner Rebbe.  He lives in Jerusalem. Hanukkah ( ; Hebrew: חֲנֻכָּה‎ "khanuká ", Tiberian: "khanuká ", usually spelled חנוכה , pronounced ] in Modern Hebrew, ] or ] in Yiddish; a transliteration also romanized as Chanukah or Ḥanukah) is a Jewish holiday commemorating the rededication of the Holy Temple (the Second Temple) in Jerusalem at the time of the Maccabean Revolt against the Seleucid Empire.  Hanukkah is observed for eight nights and days, starting on the 25th day of Kislev according to the Hebrew calendar, which may occur at any time from late November to late December in the Gregorian calendar.  It is also known as the Festival of Lights and the Feast of Dedication. Yissachar Dov Rokeach (born 19 January 1948) is the fifth and present Rebbe of the Hasidic dynasty of Belz.  He is the son of Rabbi Mordechai of Bilgoray (1902 – 1949), the grandson of the third Belzer Rebbe, Rabbi Yissachar Dov Rokeach, and the nephew of the fourth Belzer Rebbe, Rabbi Aharon Rokeach, who raised him.  He has led Belz since 1966. Mordechai Shlomo Friedman (15 October 1891, Boiany, Ukraine – 2 March 1971, New York City), sometimes called Solomon Mordecai Friedman, was the Boyaner Rebbe of New York for over 40 years.  In 1927 he left Europe to become one of the first Hasidic Rebbes in America, establishing his court on the Lower East Side of New York City and attracting many American Jewish youth with his charismatic and warm personality.  He also played a role in American Jewish leadership with positions on Agudath Israel of America, the Moetzes Gedolei HaTorah, and Holocaust rescue organizations.  In 1957 he built the flagship Ruzhiner yeshiva, Tiferet Yisroel, at the top of Malkhei Yisrael Street in Jerusalem. Rabbi David Elimelech Tzanger (born Nowy Sacz, Poland 1880-1962) was a religious figure and Hasidic personality in his native Poland, Canada and Israel.  Tzanger was born to parents Isaac Pinchus and Hinda Rechel Tzanger (née Kirshbaum), who were followers of the Tsanz Hasidic sect.  He was a disciple of the first Bobover Rebbe - Reb Shlomo Halberstam.  He was originally trained as a ritual slaughterer, however due to his extreme piety and knowledge of Jewish law he was crowned the Krakower (Crakow) Rebbe by the then Bobover Rebbe Ben Zion Halberstam.  This was a prestigious position as the city of Cracow was a major centre of Hasidic Judaism.  The Krakower Rebbe was then sent to Canada to lead the Hasidic community there and finally to Israel where he led a community of hasidic Jews in Tel Aviv.  The Krakower rebbe was buried on the Har Hamenuchot in recognition of his contribution to Judaism. Grand Rabbi Avraham Yissochor Englard of Radzin, son-in-law of "Tiferes Yosef" and brother-in-law of Grand Rabbi Shmuel Shlomo Leiner of Radzin.  Crowned as successor of the Izhbitza-Radziner Dynasty in Eretz Yisroel after the Holocaust, by most descendants of the Izhbitza-Radzin family, and by Radziner Hasidim in Eretz Yisroel and worldwide.  [Radziner Chasidim did so in accordance with the final parting words of the previous rebbe, Grand Rabbi Shmuel Shlomo Leiner of Radzin, before he was killed al Kiddush Hashem].  Under his leadership, the Izhbitzer-Radziner Dynasty rebuilt itself, with the Center of Radziner Institutions being established in Bnei Brak.  The Rebbe also established Radziner Shuls (known as Shtieblech) in many cities where Radziner Hassidim were concentrated.  This includes Jerusalem, Haifa, Netanya, Tel Aviv, Holon and Petah Tikva.  The Rebbe also established the Radziner Yeshiva Sod Y'sharim in Jerusalem, the Radziner Yeshiva Ateres Shlomo in Bnei Brak, the Radziner Yeshiva Tiferes Yosef in Bnei Brak, with many Kollelim located in Jerusalem, Bnei Brak, and Haifa.  Died 20 Tishrei 5766 (2005).  Buried in the Rabbinical section (Chelkas HoRabbanim) of Har HaMenuchos, Jerusalem.
Answer: Holy Temple