Můstek is a Prague Metro

Prague Metro

The Prague Metro is a subway, underground public transportation network in Prague, Czech Republic. It is the fastest means of transportation around the city and serves about one and a half million passengers a day, which makes it the seventh busiest metro system in Europe and the most-used in the...

 station (in fact two stations connected with system of corridors) that serves as an interchange point between lines A

Line A (Prague Metro)

Line A is a line of the Prague Metro, serving the Czech Republic capital. Chronologically the second line in the system, it was first opened in 1978 and has expanded mostly during the 1980s...

 and B

Line B (Prague Metro)

Line B is a line on Prague Metro. Chronologically the third to open, it was first opened in 1985 and continued to expand in the 1990s. Currently it is the longest line in the network with 24 stations and of track.-History:-External links:...

. It wasn't until the excavation of the area that a medieval bridge was discovered and the meaning of the name Můstek ("Little Bridge") fully understood.

Můstek A (completed in 1978) has two exits through escalator tunnels (one on both ends of the middle aisle) with one vestibule below lower (NW) end of the Wenceslas Square

Wenceslas Square

Wenceslas Square is one of the main city squares and the centre of the business and cultural communities in the New Town of Prague, Czech Republic. Many historical events occurred there, and it is a traditional setting for demonstrations, celebrations, and other public gatherings...

 (the preserved medieval bridge can be seen here) and the other below the central part of the square. A system of corridors connects the station of Line A with station of Line B located roughly in the same location, but several metres deeper. Můstek B (completed in 1985) has one escalator tunnel with a vestibule below Jungmann Square.