This contemporary, controlled-environment wine display was built in a penthouse to highlight wine bottle collection. It features 11.5-foot, honeycomb metal wine racks with glass on four sides, the panels are switched smart glass. The front and rear panels have a patterned inner layer in theĀ glass that follows the honeycomb rack pattern off to see the bottles and on to opaque the bottles.The switched smart glass is a patterned inner layer that follows the honeycomb rack pattern that turns the view opaque. This feature has an easily controlled on and off switch.