Daniel Ordoñez reads in his room on the 24th floor of the W Hotel in Barcelona. Ordoñez has lived there since March, the sole occupant in the luxury hotel.  Photograph: Samuel Aranda/The New York Times)

Every five days, Daniel Ordoñez opens 1,400 pipe taps in a waterfront hotel in Barcelona that locals call “The Sail” because of its shape. Each tap h(...)