Every year the National Trust for Historic Preservation names a list of the most endangered places in the country. While change is inevitable, these national treasures need to be preserved as important examples of architectural styles and environmental landmarks.
Union Terminal (saved)
With the decline of passenger travel, the massive size of this Art Deco building became a hindrance. However, the city repurposed the building by adding in three museums and an OMNIMAX theater. In desperate need of repairs as late as 2014, voters approved a sales tax increase to raise money for Union Terminal's restoration.