Architecture of the United States New York City's Woolworth Building designed by architect Cass Gilbert, 1913. Raising previous technological advances to new heights, 793 ft (233 m), it was the world's tallest building until 1930. Frank Woolworth was fond of gothic cathedrals. Cass Gilbert constructed the office building as a cathedral of commerce and incorporated many Gothic revival decorative elements. The main entrance and lobby contain numerous allegories of thrift, including an acorn growing into an oak tree and a man losing his shirt. The popularity of the new Woolworth Building inspired many Gothic revival imitations among skyscrapers and remained a popular design theme until
Cass District Library Library was completed (today this building is home to the Local History Branch of the library system). The Cass County board of supervisors purchased a building for a new library in December 1959. The handsome, flagstone-fronted structure required extensive repairs before the library could be opened. The library eventually outgrew this building. Construction of a new Cass County Library building, on a property, was completed in 1977. In February 1973 the Cass County Library founded the Mason-Union Branch Library in the Mason District Number 5 Schoolhouse in Edwardsburg, Michigan. The building is listed on both the National Register of Historic