The Ritz

From TARDIS Index File, the free Doctor Who reference.

The Ritz was a dance hall in Cardiff. It opened in 1932 and closed down in 1989.

On 20th January 1941 the Kiss the Boys Goodbye Dance was held there.

At a visit there Jack and Tosh were taken back in time to The Ritz in 1941. There they encountered the real Jack Harkness and Bilis Manger. (TW: Captain Jack Harkness)