I remember going to the Dunsmuir House as a kid...

An Oakland Holiday Tradition
Weekends in December
Holidays at Dunsmuir
This annual
event has become a tradition in many Bay Area households.Costumed
docents greet you as you take a step back into Edwardian times. When
you cross the threshold into the majestically decorated 37-room
mansion, you will see the two story live holiday tree that reaches
into the Tiffany-style dome. Each room is uniquely decorated in jewel
tones, with delicate, whimsical ornaments, bows and garland to create
an exquisite atmosphere of a bygone era. Join us for a cozy tea in the
Dinkelspiel cottage or have breakfast with Father Christmas. Shop for
treasures in the antique carriage house, enjoy puppet shows, and listen
to holiday music fill the air with choral and instrumental
entertainment to warm your heart. Ride the festive trolley as it
escorts your family and friends on a one mile path throughout the
50-acre grounds.
Our dedicated volunteers put
in more than 5,000 hours to transform our 16,000 square foot mansion
into a breathtaking holiday masterpiece for your enjoyment. Please
know that your visit is important as proceeds from this event go toward
the preservation, restoration and management of this Bay area treasure.
A 501(c)3 non profit corporation
Taken from: http://www.dunsmuir.org/