Completed in 1867, the Salt Lake Tabernacle is one of the most distinctive buildings of nineteenth-century America. The 250-foot-long elliptical roof, a vast wooden bowl visible from across the square, sits on 44 sandstone piers and contains a 7,000-seat auditorium remarkable for its acoustics — a pin dropped at the pulpit is audible at the back of the gallery.
The building is home to the Mormon Tabernacle Choir (officially "The Tabernacle Choir at Temple Square"), which has broadcast every Sunday since 1929 — the longest-running continuous network broadcast in US history. Free organ recitals, with the building's massive 1867 organ, are given daily at noon (12:30pm Sunday) and are well worth catching even if you have no interest in religion.