The cathedral in Strasbourg by night, France. Thanks Alain!

Erfurt, Germany
* Mariendom und Pfarrkirche St. Severi *
Thanks Melanie!

St. Stephen's Cathedral, Vienna, Austria
Thanks Thomas!

From Lisa in Pittsburgh PA, USA I received this great nightview. It shows a view of the Cathedral of Learning on the left (it's the main building of the University of Pittsburgh) and the Heinz Chapel on the right. It's named like that since HJ Heinz donated the money to build it! Very interesting! :-)

Found another 'oldie' at a secondhand-store. Vienna must be so wonderful, hope to go there one day!

At this card you can see: "St. Stephen's Cathedral by night".

St. Stephen's Cathedral (German = Stephansdom) is the mother church of the Archdiocese of Vienna and the seat of the Archbishop of Vienna, Christoph Cardinal Schonborn,OP. Its current Romanesque and Gothic form seen today, situated at the heart of Vienna, Austria in the Stephansplatz, was largely initiated by Rudolf IV and stands on the ruins of two earlier churches, the first being a parish church consecrated in 1147. As the most important religious building in Austria's capital, the cathedral has borne witness to many important events in that nation's history and has, with its multi-colored tile roof, become one of the city's most recognizable symbols. (Wikipedia)

Grand Square and Cathedral in Antwerp, Belgium.

Antwerp is a city and municipality in Belgium and the capital of the Antwerp province in Flanders, one of Belgium's three regions. Antwerp's total population is 472,071 (as of 1 January 2008) and its total area is 204.51 km² (78.96 sq mi), giving a population density of 2,308 inhabitants per km². The metropolitan area, including the outer commuter zone, covers an area of 1,449 km (559 sq mi) with a total of 1,190,769 inhabitants as of 1 January 2008. The nickname of inhabitants of Antwerp is Sinjoren, after the Spanish word señor, which means 'mister' or 'gent'. It refers to the leading Spanish noble-men who ruled the city during the 17th century.
Antwerp has long been an important city in the nations of the Benelux both economically and culturally, especially before the Spanish Fury of the Dutch Revolt. It is located on the right bank of the river Scheldt, which is linked to the North Sea by the estuary Westerschelde. (wikipedia)

Thanks Dick in Drachten for giving me this card as a surprise! :-)

Reims (France)
The Notre Dame cathedral.
Thanks Benjamin for this great card (via postcrossing.com)