Rialto Theatre, also known as the Miller and Washington Block, is a historic commercial block and theatre located at Monticello in Sullivan County, New York. It was built in 1921 and the theatre was developed as part of a commercial block which incorporated three storefronts and a restaurant occupying the entire second floor. The block is two stories tall and a broad six bays wide, constructed of brick. The theatre auditorium extended 136 feet to the rear and constructed of parged concrete. The former lobby is occupied by a storefront.[2] The auditorium was demolished in 2003.[3] The theater's marquee was removed during renovations in 2012, supposedly because it was deteriorated, when "workers pulled it apart in pieces and junked it," according to a published account.[4]
It was added to the National Register of Historic Places in 2001.[1]