Utah Capitol building was completed in July of 1915, making it 100 years old, this year. The exterior is made of beautiful granite from nearby mountain canyons and the interior rotunda includes Georgia marble. Visit the Utah Capitol on a Salt Lake City sightseeing tour, including the Salt Lake City Deluxe Tour, the Trolley Tour of Salt Lake City, or the Mormon Tabernacle Choir & Deluxe City Tour. Reserve your seats on the sightseeing tour bus or trolley online at www.SaltLakeCityTours.org or call (801) 531-1001. We look forward to having you on a sightseeing tour with Salt Lake City's #1 rated tour company!