Fourteen-foot ceilings, tall windows, a thirteen-foot hallway mirror, and black walnut dining-room furniture show a pedigree of money and manners. The two wealthy gamblers who constructed the building in 1872, as a gambling clubhouse for their friends (men only), obviously meant to impress. In 1971, the Mainstay became Cape May's first B&B, and since then has been the archetype for those that followed. You can also stay at the adjoining Cottage, or across the street in a duplex apartment. Guest rooms and suites have Victorian antiques, while the apartment has some traditional flourishes, but is mostly contemporary with a full kitchen, gas fireplace, and a small dining area.