The quirky Hill Country resort Onera Fredericksburg is beckoning fall travelers with the addition of 23 brand-new, high-end treehouse units. These aren't the nostalgic treehouses of childhood; each new luxury unit features sustainable materials, modern and sleek interior design, and sweeping, unobstructed views of the surrounding landscape. The new units are an expansion from the original 12 on the Fredericksburg property, making 35 in total. All of them make up a luxury resort with shared am...
