Final answer:
The Bauhaus building in Dessau was peculiar to locals due to its functionalist design featuring glass walls, right angles, and flat roofs, but not because of classical sculptural decoration, which it lacked.
Step-by-step explanation:
According to the Dessau Bauhaus video, the newly built Bauhaus building seemed peculiar to the inhabitants of Dessau because of all the following elements EXCEPT classical sculptural decoration. The Bauhaus style was marked by the absence of ornamentation, and this included a lack of classical sculptural decoration. Walter Gropius, the founder of the Bauhaus, emphasized functionalist design with features like glass walls, right angles, and flat roofs, which were unconventional at the time and thus appeared peculiar to locals.