At the heart of New York’s Gilded Age – the late 19th century era of unprecedented American wealth and excess – were families with the names Vanderbilt, Belmont and Astor, alongside power players like A.T. Stewart, Jay Gould and William ‘Boss’ Tweed.They would all make their homes – and in the case of the Vanderbilts, their great many homes – on Manhattan’s Fifth Avenue.The image of Fifth Avenue as a luxury retail destination today grew from the street’s aristocratic reputation in the 1800s. The rich were inextricably drawn to the avenue as early as the 1830s when rich merchants, anxious to be near the exquisite row houses of Washington Square Park, began turning it into an artery of expensive abodes.In this podcast -- the first of two parts -- Tom and Greg present a world that’s somewhat hard to imagine – free-standing mansions in an exclusive corridor running right through the center of Manhattan. Why was Fifth Avenue fated to become the domain of the so-called ‘Upper Ten’? What were the rituals of daily life along such an unusual avenue? And what did these Beaux Arts palaces say about their ritzy occupants?CO-STARRING: Mark Twain, Madame Restell, George Opdyke and “the Marrying Wilsons”boweryboyshistory.com