  The diverse and intriguing phenomena observed in twisted bilayer systems,
such as graphene and transition metal dichalcogenides, prompted new questions
about the emergent effects that they may host. However, the practical challenge
of realizing these structures on a scale large enough for spectroscopic
investigation, remains a significant hurdle, resulting in a scarcity of direct
measurements of the electronic band structure of twisted transition metal
dichalcogenide bilayers. Here we present a systematic nanoscale angle-resolved
photoemission spectroscopy investigation of bulk, single layer, and twisted
bilayer WS2 with a small twist angle of 4.4{\deg}. The experimental results are
compared with theoretical calculations based on density functional theory along
the high-symmetry directions {\Gamma}-K and {\Gamma}-M. Surprisingly, the
electronic band structure measurements suggest a structural relaxation
occurring at 4.4{\deg} twist angle, and formation of large, untwisted bilayer
regions.
