The interior renovation of the Cathedral of the Immaculate Conception, built in 1883, was one of A. L. Huber's most satisfying projects. The goal of the design team for this project was to remove all remnants of a modernistic redesign from a 1950's renovation and restore the interior to its original, neo-classic style. The most challenging aspect of this project was the replacement of the mechanical systems. The basement level of the building had to be enlarged and lowered for the replacement of all plumbing, electrical, heating and air conditioning, and fire safety systems. The old choir loft was demolished and a new choir loft and organ platform were designed and added. The 15,000 piece, 3,000 pipe organ, originally built in Italy by Fratelli Ruffatti, was purchased in the United States, disassembled, and shipped back to Italy, where it was redesigned to fit the Cathedral space. The new stonework at the altar, ambo, cathedra, and baptismal font was hand carved by Paper and Stone, artisans from Edina, Minnesota. Synchronizing the schedules of the three hundred persons commonly at work on the project required careful planning and strategizing with all subcontractors and material suppliers. It is a testament to A. L. Huber's attention to detail and safety that there was not one hour lost to injury during the sixteen-month duration of this project. This project has received numerous awards for architectural innovation and design. On your next trip to the downtown area, set aside a few moments to visit the Cathedral and enjoy the renewed beauty of this building.