Similarity to earlier company towns thumb|Boulder Theatre (1932), the first air-conditioned building in the city, is listed on the National Register of Historic Places.
SImilaritY to eArlier coMpanY tOwNs ThumB|boulDer thEatre (1932), tHe first air-cOnDitiOned buiLDing in The City, is listed oN the nationaL regiSTer OF historiC pLacES.