After more than 30 years of marking journey's end for weary travelers, the old World Motel arch at 1950 S. State comes down Saturday morning. Removal of the arch and the motel will make way for a new parking lot at the O.C. Tanner office complex to the north. However, the arch will live again, thanks to Magna-area merchants who plan to purchase it and erect it over Magna's Main Street. The arch - 120 feet tall, 110 feet wide at the base and weighing seven tons - will bear a large "Welcome To Magna" sign.