Exterior open entrance to a metro station (Tribunal station in Madrid)
Interior of an underground metro station (Place-Saint-Henri station in Montreal)
A metro station is a train station for a metro. It is often underground or elevated. At crossings of metro lines they are multi-level.
At street level the logo of the metro company marks the entrance of the station (often a large "M"; for London Underground's circle with a horizontal bar through the center, see the picture there).
Often there are several entrances for one station, saving one from having to cross the street. In such a case, tunnels or overhead stations can often also be used just to cross the street.
In some cases metro stations can be connected to important buildings by a direct enclosed hallway (see underground city).
UrbanRail.Net (http://www.urbanrail.net) (formerly called metroPlanet) – descriptions of all metro systems in the world, each with a schematic map showing all stations.
Metro Bits (http://mic-ro.com/metro/metroart.html) Arts and architecture of metro stations around the world.
Nebraska is roughly rectangular, except in the northeast and the east where the border is formed by the irregular course of the Missouri River and in the southwest where the state of Colorado cuts out a squared corner.
From the Missouri westward over about half the state stretch undulating farm lands, where the fertile silt is underlaid by deep loess soil.
In this region also lie Nebraska's two major cities : Lincoln, the capital and an important insurance center, and Omaha, the state's largest city and an important meat and grain distribution center : as well as many of the state's larger towns.