RTD's No. 15 Bus

DOWNTOWN. The interstate robbed Colfax of the motorists who once made this strip – the longest continuous business street in the country – a neon-lit wonderland of motels and restaurants. But the city's most colorful characters remain, and they use RTD's No. 15 Bus daily. Bring your own soundtrack and enjoy this authentic education on urban life, which rolls through a vibrant landscape of '50s architecture.