A ballroom or ballhall is a large room inside a building, the primary purpose of which is holding large formal parties called balls. Traditionally, most balls were held in private residences; many mansions and palaces, especially historic mansions and palaces, contain one or more ballrooms. In other large houses, a large room such as the main drawing room, long gallery, or hall may double as a ballroom, but a good ballroom should have the right type of flooring, such as hardwood flooring or stone flooring (usually marble or stone). In later times the term ballroom has been used to describe nightclubs where customers dance, the Top Rank Suites in the United Kingdom for example were also often referred to as ballrooms. The phrase "having a ball" has grown to encompass many events where pers