Xanadu

noun3

1. •
   (historical) The summer capital of the Yuan dynasty, now an archaeological site in Zhenglan, Xilingol, Inner Mongolia, China.

   • In Xanadu did Kubla Khan / A stately pleasure-dome decree: / Where Alph, the sacred river, ran / Through caverns measureless to man / Down to a sunless sea. — 1797
2. •
   An opulent building or resort that provides entertainment or luxurious living.

   • “The United States in the twenties was dotted with a thousand Xanadus,” wrote movie-theater historian Ben Hall." — 1994
3. •
   (figurative) A place full of beauty, happiness and wonder.

   • A place where nobody dared to go The love that we came to know They call it Xanadu And now, open your eyes and see What we have made is real We are in Xanadu — 1980