The Vanderbilts, Rockefellers, Carnegies, Huntingtons and other fabulously wealthy industrialists built their own spectacular “great camps” in the Adirondacks of upstate New York where they could spend time with their families in private luxury. The scions of New York City took to declaring that they would “vacate” their city homes for their lakeside summer retreats, and the term “vacation” replaced the British “holiday” in common parlance.