Christmas tree at Fashion Island in Newport Beach, California, U.S.A., with the water fountain near Neiman Marcus. Fashion Island used to boast the world's tallest Christmas tree until 2008. This 2013 tree was m tall and cost roughly $1,000 a foot to install. It was installed by the same company that installed the 96-foot South Coast Plaza tree in the same year. The little light in the sky is the moon.