New York City Transit's vintage fleet consists of 19 buses such as a 1917 wood-bodied double-decker called the Queen Anne and a 1956 model that was the first to have air conditioning.
Department of Buses Senior Vice President Joseph Smith says the older buses have a lot of charm but the current ones offer tremendous improvements in comfort and efficiency.
The vintage buses are in service on several Manhattan and Queens routes weekday rush hours during the holiday season.
Subway riders also are being treated to trips back in time. The transit agency is running a subway train featuring vintage cars on Sundays until the end of the year.