Moscow also has four smaller airports which handle both international and domestic flights; with Domodedovo Airport seeing increasing numbers of flights from low-cost European carriers. By train: rail is a viable option for visitors coming from Europe and those already in the country. Those in the latter category can take advantage of the St Petersburg-Moscow line which is the longest and most frequented in the country and provides high-speed and overnight connections between the two destinations and cities in between. By bus: buses connect Moscow with other major cities in the country, with overnight services providing relatively cheap but by no means speedy travel. Visitors from Europe and neighbouring countries can make use of European coach services; however, they should expect long journeys and bureaucratically complicated border crossings. Many services depart from Berlin, from where the journey takes two days, going via either Belarus or Ukraine; transit visas are required for both. Buses arrive at the Tsentrainy Avtovokzal, the central bus terminal, located next to Shcholkovskaya metro station. | 
