 Saloons and gambling dens sprung up quickly after the founding.In 1859, the Apollo Hall theater opened followed over the years by such notables as the Denver Theatre, home to the city's first opera performance in 1864, and the Broadway Theatre which brought in internationally renowned performers, but none was quite as luxurious as the Tabor Grand Opera House built in 1881.Built by Horace Tabor with the money he had made mining silver, the Tabor Grand Opera House in Denver was said to be the most opulent building and the best-equipped theater between Chicago and San Francisco at its opening.