Here's my description of the windy route up the Mt. Washington Auto Road. While reading, follow along with the map below.
Today there are a variety of buildings at the base of the road.
The entrance is marked by an overhead sign welcoming you to the Auto Road. On the other side of this sign is a message for those who drive their own vehicles. It reads, 'This car climbed Mt. Washington', just like on the souvenir bumper stickers. In a few hundred feet, drivers come upon an interesting brown warning sign. The road immediately crosses a small bridge, passes a few buildings, and passes the tollhouse.