Miami Beach is known for its colorful Art Deco buildings. But more and more, only real estate developers are willing to spend the money it takes to preserve them — if they can build a tall, high-end residential tower on the property. This strategy saves at least part of the old buildings but changes the skyline forever. Preservationists fear this will destroy what makes Miami Beach special. WLRN's Verónica Zaragovia reports on the simmering tensions over historic preservation in an evolving city — throughout the last century and today.