Wikipedia: Gothic Architecture - An illustrated description of the origins and characteristics of the style and its variants and revival. It includes a list of notable Gothic structures. - http://en.wikipedia.org/wiki/Gothic_architecture
The Nature of Gothic - An extract from John Ruskin's influential book "The Stones of Venice" (1851-3). - http://www47.homepage.villanova.edu/seth.koven/gothic.html
Gothic Art and Architecture - Serge Helfrich introduces the art form, dominated by the struggle of architecture against gravity, that flourished in Europe from the 12th until the 16th century. - http://www.xs4all.nl/~helfrich/gothic/
Earthlore: Gothic Dreams - A lively and illustrated introduction to the monumental churches and cathedrals of the Middle Ages, with a feature on Notre Dame de Paris. - http://www.elore.com/Gothic/contents.htm
European Route of Brick Gothic - Project aiming to survey medieval buildings in brick in cities around the Baltic Sea and promote a thematic tourist route. - http://www.eurob.org
The Birth of Gothic Architecture - Syracuse University provides a visual journey from the birth of French Gothic to pre-Renaissance Italy. - http://www.maxwell.syr.edu/maxpages/classes/His311/Lecture%20Three/lect6.html
Medieval Architecture: High Gothic - Slides of major Gothic buildings from Jeffery Howe's Digital Archive of Architecture: Notre Dame, Chartres; Notre Dame, Amiens; St. Etienne, Bourges; Ste. Chapelle, Paris; Cologne Cathedral. - http://www.bc.edu/bc_org/avp/cas/fnart/arch/high_gothic.html
Gothic Style Brick Buildings - Information on structures in the Mecklenburg, Vorpommern region of Germany. - http://www.all-in-all.com/english/8022.htm
Sculpture for Buildings: Medieval Europe - The Metropolitan Museum of Art uses its extensive collection to present an online tutorial. - http://www.metmuseum.org/toah/hd/arch/hd_arch.htm
Gothic Valle d'Aosta, Italy - Pure Gothic runs rampant in this section of the country thanks to strong German and French influence, seen in a half-dozen color photos from In Italy Online, with description and tourist information. - http://www.initaly.com/~initaly/regions/valdsta/michael.htm
St. Joseph Messenger: Architecture - For young viewers...a concise answer to the question: What makes it Gothic? - http://www.aquinas-multimedia.com/stjoseph/architecture.html
Medieval French Gothic Architecture and Sculpture - San Jose State University provides an extensive gallery of expandable images, accessed via pull-down menu and selection from an array. Basic information is given for each. - http://worldart.sjsu.edu/prt31*1$596
Romanesque and Gothic Architecture Plans - Spatial proportions compared in detailed layouts, with clickable thumbnails and extensive glossary. From Rice University, Humanities Electronic Studio Project. - http://www.owlnet.rice.edu/~hart205/Cathedrals/Plan/plan.html
1200 Years of Italian Sculpture: Gothic - Architectural details predominate in this collection of photographs from Thais. - http://www.thais.it/scultura/romanica.htm
Medieval Architecture - Clickable thumbnails of photos and drawings illustrating Early Gothic with links to the High Gothic period, from the Digital Archive of Architecture. - http://www.bc.edu/bc_org/avp/cas/fnart/arch/gothic_arch.html
Gothic Dreams - An exploration and study of churches and cathedrals in the Gothic style. Features include: histories, study guides, glossaries and galleries. - http://elore.com/elore04.html
New York Carver - A virtual Gothic cathedral project, featuring articles, photo galleries of Gothic architectural details and an illustrated glossary of terms. Image of the day, screensaver, newsletter, resources. - http://www.newyorkcarver.com/