Tamsui Tianyuan Palace Cherry Blossom Viewing Tamsui Tianyuan Palace is a popular cherry blossom viewing spot in the north. The three-color cherry blossoms in the back mountain bloom from January to February every year, and the Yoshino cherry blossoms in the Temple of Heaven in the front mountain bloom in about three to four years. In addition to the famous cherry blossom landscape in Taiwan, the architecture of Tianyuan Palace is also quite unique. The Wuji Zhenyuan Temple of Heaven in the main hall is 5 stories high and 200 feet high. Its bright colors of red, blue and yellow make the whole temple look very majestic.