From the Most Popular file: An incredible tree house takes things up a notch for the holidays. See how it came to be

See how local designers have transformed this historic Queen Anne–style home with stunning holiday displays

Ornate holiday decorations make this historic Dallas estate, including a hacienda-style mansion and gardens, even more of an eyeful

Step back in time into the extravagant and carefully preserved Boston residence of a wealthy widow, decorated elegantly for the holidays

When you're short on time, focus on the basics to make your house festive and fragrant

Take a cue from classic Christmas movie 'Home Alone' and outfit the house with shades of red and green

Make the run-up to Christmas extra special with a treat a day in each tiny paper Advent house

Yards and homes in this retirement neighborhood in Florida take full advantage of loosened holiday decorating rules

A good cause and daring design go hand in hand at a Manhattan mansion, with plenty of inspiration for all

The New York City fundraiser, open through December 21, showcases holiday-themed rooms by 23 designers