The announcement on April 7, 1984, of the intent to construct the temple set the stage for a property development process that faced early opposition.[8][9] Before the dedication ceremony, the temple had a symbolic cornerstone placed in a recess, a capsule that contained scriptures, photographs, historical records, artifacts, and items related to the church in the area.[9] The tallest spire goes to 170 feet, adding to 183 ft, including the 13 foot statue of the angel Moroni on the top (which is meant to represent the spreading of the gospel).[citation needed] The building has modern features coupled with traditional Latter-day Saint temple designs, reflecting both the cultural heritage of Portland and the spiritual significance of the church.There is also a visitors' center on the grounds where individuals can read materials, watch videos, and participate in exhibits which teach about Jesus Christ.The exterior is characterized by its white marble walls, spires, domes, and its green Vermont slate roof, each chosen for their symbolic significance and alignment with temple traditions.The central spire represents reaching upwards to heaven, with the angel Moroni on its top symbolizing the church’s mission to spread the gospel of Jesus Christ.In the temple, baptismal fonts rest on the back of 12 oxen, symbolizing the twelve tribes of Israel and the strength and power of God’s work.[14] Testimonials included spiritual experiences during the open house, with one anecdote involving a man initially distributing anti-Mormon literature."[12] Thomas S. Monson, Benson's second counselor, celebrated his 62nd birthday during the services, and adding a personal touch to the dedication, he invited a young local girl to join him, and presenting her with a white rose, he encouraged her to preserve it as part of the temple and return one day for a marriage ceremony.[9] Other remarks were directed at youth during the sessions (the minimum age for attendance was eight years old), encouraging them to prepare to do baptisms for the dead, missionary service, receive the endowment, and to be sealed.Furthermore, there are exhibits showcasing the testimonies of the First Presidency and members of the Quorum of the Twelve Apostles, along with teachings drawn from recent general conference addresses.