"Sunset arms apts", "Hacienda Arms Apartments", "Windsor Arms Apartments", "Robot arms" (Futurama) - what are all those "arms"?
In England hotels and pubs are often named after the heraldic 'coats of arms' belonging to royal or noble families. Plenty of pubs are called 'The King's Arms'. The practice seems to have spread across the Atlantic. Here is the heraldic coat of arms of the United Kingdom, used by the reigning monarch: