National Cathedral - Northwest Washington D.C. at 3101 Wisconsin Avenue. The High Altar, The Jerusalem Altar, is made from stones quarried at Solomon's Quarry near Jerusalem. In the floor directly in front of the altar are set ten stones from the Chapel of Moses on Mount Sinai, representing the Ten Commandments as a foundation for the Jerusalem Altar.

National Cathedral - Northwest Washington D.C. at 3101 Wisconsin Avenue. The High Altar, The Jerusalem Altar, is made from stones quarried at Solomon's Quarry near Jerusalem. In the floor directly in front of the altar are set ten stones from the Chapel of Moses on Mount Sinai, representing the Ten Commandments as a foundation for the Jerusalem Altar.