Slovakia: Komarno

Railway station in Komarno (Slovakia, August 2004)

Ukraine: Kamianets Podilskyi (Kamieniec Podolski, Кам'янець-Подільський)

Railway station in Kamianets Podilskyi (Ukraine, August 2006).

Poland: Przemysl (Przemyśl)

Railway station in Przemysl (Poland, August 2006).

USA: San Francisco, CA

"Railway station" in San Francisco (USA, September 2001).
Trains don't stop there - this is the place where Amtrak buses pick up passengers and take them to the nearest real railway station in Emeryville. I guess this station in San Francisco is called Ferry Building.

Mongolia: Ulan Bator (Ulaanbaatar)

Railway station in Ulan Bator (Mongolia, August 2007)

Turkey: Adapazari

Railway station in Adapazari (Turkey, January 2007).

Montenegro: Bar

Railway station in Bar (Montenegro, September 2005)

Czech Republic: Zadni Treban (Zadní Třebaň)

Railway station in Zadni Treban (Czech Republic, February 2006)

Bulgaria: Vetovo

Railway station in Vetovo (Bulgaria, August 2004)

Croatia: Beli Manastir

Railway station in Beli Manastir (Croatia, summer, a few years ago).

Serbia: Belgrade

Main railway station in Belgrade (Serbia, August 2004).

Hungary: Sátoraljaújhely

Main railway station in Sátoraljaújhely (Hungary, a few years ago)

Poland: Lodz (Lodz Fabryczna)

Lodz Fabryczna - one of two main railway stations in Lodz, front view (Poland, winter, a few years ago).

Russia: Moscow (Yaroslavskaya Station)

One of main railway stations in Moscow (Russia, August 2007)

Slovakia: Trnava

Main railway station in Trnava (Slovakia, August 2006)

Georgia (Sakartvelo): Tbilisi

Main railway station in Tbilisi (Georgia - Sakartvelo, December 2006).

Belarus: Brest

The main railway station in Brest  (Belarus, August 2007).

Turkey: Istanbul (Haydarpasa Station)

The main railway station in Asian part of Istanbul (Turkey, July 2005). You can read more about this station here and here.

Ukraine: Lviv

Main railway station in Lviv (Ukraine, August 2004)

The Netherlands: Amsterdam (Central Station)

Main railway station in Amsterdam (The Netherlands, July 2003).

Greece: Thessaloniki

Main railway station in Thessaloniki, Greece (fall/winter, 2001).

USA: Denver, Colorado (Union Station)

Main railway station in Denver, Colorado (USA, summer 2001).

Poland: Lodz (Lodz Fabryczna)

One of two main railway stations in Lodz (Poland, winter, a few years ago).

Romania: Bucharest, Gara de Nord

Main railway station in Bucharest (Romania, August 2004).