Hotel Tassel by Architect Victor Horta. This is actually a curved mirror, not an opening, which creates a beautiful infinity effect and emphasizes & elaborates on the curved glass ceiling. Built between 1893 and 1894 in Brussels, Belgium.
Victor Horta, Tassel House, after Made in the Art Nouveau style, this house incorporates elements of classical design into new curvilinear forms inspired by nature. This style continued to be popular across Europe until