1821. Reflect on these five characters for a while, what do you see? 区 州 汁 美 郵

Answer:

区  KU - district

州  SHUU, su - state, sandbank

汁  JUU, shiru - juice, sap, soup, broth, gravy

美  BI, MI, utsuku(shii) - beautiful, beauty

郵  YUU - mail

Characters that look the same upside down, as if reflected in a lake or pool.