context: In the early part of the 20th century, Atlantic City went through a radical building boom. Many of the modest boarding houses that dotted the boardwalk were replaced with large hotels. Two of the city's most distinctive hotels were the Marlborough-Blenheim Hotel and the Traymore Hotel.
question: పెద్ద పెద్ద హోటళ్ళు ఏర్పడడానికి ముందు ఉన్న నిరాడంబరమైన వసతి గృహాలు ఎక్కడ ఉన్నాయి?
answers: the boardwalk