Haunted Hotel Halloween Party — W Aspen Rooftop & Hidalgo Step inside Aspen’s most stylishly spooky night as W Aspen transforms into a Haunted Hotel for Halloween. Sip eerie, over‑the‑top themed cocktails, dance to live DJs, and compete in our high‑energy costume contest for bragging rights and prizes. With haunting vibes, playful scares, and Aspen’s most creative crowd, it’s the Halloween party everyone talks about long after the night ends.