When I moved to NYC from Wyoming five years ago, I went from a state with a population density of six people per square mile to a New York apartment with six roommates.

"I keep thinking about that noodle," a friend said to me, days after I first introduced him to Xi’an Famous Foods.

After months of anticipation, Manhattan finally gets its first Spa Castle location: Spa Castle Premier 57, a just-now-open, Midtown retreat sprawled over three enormous floors of the Galleria Building on 57th St. Here are 13 things you need to know about the fancier, luxe-er version of the Queens mothership.