Our Pick
Posted on @rawstates
The Vanderbilt mansion at Hyde Park
1899
Hyde Park, New York
Public domain · Wikimedia Commons
A fifty-four-room Beaux-Arts house used by two people for a few weeks a year, and modest by the standards of the family that built it. It survives complete with its furnishings because a niece could find no buyer during the Depression and gave it to the government on Franklin Roosevelt's suggestion.
That was 1 of the hidden places.
Location: documented spot
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