Looking down the Inverted Tower or Initiation well of Quinta da Regaleira, Sintra, Portugal. The owner wanted to develop the palace and its grounds as a gathering of symbols that would reflect his interests and ideologies.
Image: Courtesy of San Alfonso del Mar. “The World’s Largest Swimming Pool, is located at the San Alfonso del Mar Resort. We set out to find the most beautiful pools in the world! Check out 10 of our top favorites below.