First Look: Inside Powell Street’s Stylish Axiom Hotel; Among SF’s new crop of stylish stays, which includes the Viceroy’s recently opened Hotel Zeppelin, is the Axiom Hotel, whose 1908 building at the famous Powell Street turnaround is shining post-modern makeover by NYC firm Stonehill & Taylor, which designed Manhattan’s Ace and Nomad hotels. Once a stodgy relic, the Axiom has become eye candy for young design lovers—think cool-and-quirky Ace meets the clubby W.