Loppem Castle - This Gothic Revival mansion in Belgium designed by Edward Welby Pugin retains its original architecture and interior, and lies in a park, with ponds and a labyrinth. Description, photographs and visitor information. [Dutch, French and English.] - http://www.kasteelvanloppem.be/
The Friends of Strawberry Hill - A charity dedicated to the preservation and restoration of Horace Walpole's "little gothic castle" in Twickenham. Includes images and history. - http://www.richardspires.pwp.blueyonder.co.uk/Horace/
Wikipedia: Gothic Revival Architecture - An illustrated description and history of the style. - http://en.wikipedia.org/wiki/Gothic_revival_architecture
The National Trust: Tyntesfield - This spectacular Victorian Gothic-Revival house and chapel near Bristol was built for businessman William Gibbs from 1863. History, description, photographs and visitor information. - http://www.nationaltrust.org.uk/places/tyntesfield/
Stones of History: The Parliament Hill Reconstruction Project - Photographs, web-cam and progress reports on the renovation of Canada's Neo-Gothic parliament buildings, from Public Works and Government Services, Canada. - http://parliamenthill.gc.ca/
The Arts Centre of Christchurch, New Zealand - Housed in the former Canterbury College, a Gothic Revival complex designed by Benjamin Mountfort and Samuel Seagar. The official site gives photographs, history, description and brief biographies of the architects. - http://www.artscentre.org.nz/