In case, you get lost in Havana, you might take a ride at a taxi. They have government operated cabs / taxis with a fixed tariff and a taximeter, private taxis without taximeter and tariff but a wonderful old car, tuktuks (cuba taxi), motorbikes and bike taxis.
The government taxis are cars build in the 1970s or (a bit) younger. Most of them were built in (former) Eastern bloc countries, i.e. Czech Republic or Soviet Union. The really young cars are of chinese production.
The private cabs are private owned vintage cars, build in the USA in the 1950s or earlier, as I mentioned in my last posts on cuban cars. Yellow eggs on 3 wheels and even regular motorbikes are used as a taxi.
Parts of the old town of Havana (and other cities, too) are closed for cars and only pedestrians and bikes are allowed here. So, bike taxis are cruising in these areas and offering their service for the people. Here, you also have to negotiate the price with the driver. In case, you got lost or running out of time, they will be happy to bring you to any place you want: back to your hotel or to a restaurant or any other place.
Even the locals use such vehicles. I saw i.e. private taxis with up to 10 people inside (I noticed them entering the car). It was really enormously, how many people were sitting in such a car without thinking about safety, although they also have busses as a kind of public transportation.
And, while waiting for my next post, you might have a look on my previous posts on Cuba!