The best means of transport to get around Mexico is the metro. Not only is it reasonably clean and quick, but you can ride for approximately $.25 USD. And luckily the popular sites and activities are easy to reach by train. Several different types of buses motor through the main square and its busiest streets -- they are also a reasonable option. Taxis are a little more expensive, but they are a hassle-free means of getting to the city centre from the Benito Juárez International Airport (MEX). The first class buses are about 25 percent less in price and are still air-conditioned express buses. Driving yourself is a horrifying idea -- either to and from the airport or around town. These red and white buses move quickly in dedicated lanes alongside the Avenida de los Insurgentes. The red double-decker Turibus provides commentary in five languages on various popular sites and routes all through the city. Tours generally last around three hours with just about 20 stops along the way. It's a bit pricey but it's also a comfy and drama-free way to explore the city. Mexico also boasts of a well-developed network of national airports and offers air passengers an abundant choice of airlines, including low-cost carriers.