Wikipedia: Duomo di Milano
- An illustrated history and description of the second largest Gothic cathedral in the world from the collaborative encyclopedia.
- http://en.wikipedia.org/wiki/Duomo_di_Milano

Monumental Churches of Antwerp (Belgium)
- Attractive introduction to the Gothic Cathedral of Our Lady and other historic churches and chapels: history, description, expandable thumbnail photographs. Official site of the diocese of Antwerp.
- http://topa.be/

The Oeuvre Notre-Dame
- A detailed, illustrated history of Strasbourg Cathedral, with updates on a recent renovation. Building tool dictionary, glossary of Gothic architecture. In English, French, German.
- http://www.oeuvre-notre-dame.org/

Cologne Cathedral
- Highlights from Cologne Tourism of the history and architecture of one of Germany's largest religious structures, with links to the city's Roman, Romanesque and Medieval periods.
- http://www.willkommeninkoeln.de/06kunst/kunst04e.htm

St Vitus Cathedral, Prague
- A gallery of images of the medieval cathedral, with some historical notes, from the Praha Experience.
- http://lava.ds.arch.tue.nl/gallery/praha/thrad_sv.html

The Gothic Cathedral
- Elizabeth A. Peterson of Utah University presents plans, drawings and photographs of Gothic cathedrals in England and France, and the cathedral complex at Pisa.
- http://www2.art.utah.edu/cathedral/

Thinkquest: Gothic Cathedrals
- Project with brief, clear overview of materials and construction methods illustrated, and bibliography.
- http://library.thinkquest.org/10098/cathedrals.htm

St.Bartholomew's Cathedral, Plzen, Czech Republic
- An illustrated history and description by Milos Wimmer of this outstanding Gothic church, from City of Plzen.
- http://www.zcu.cz/plzen/landm/barth-chr.html