Malbork Castle

Also know as Marienburg, this castle was built by the Teutonic Knights in the late 13th century.  It also served at times as part of the Prussian royal residences.

More than half of the castle was destroyed during World War II.

The exterior of the east window of the upper chapel was decorated by the first examples of exterior mosaics by Salviati in what was then still part of Germany. This was restoration work done in 1869-70 to previous mosaics (also Venetian, from the 14th century) adorning the niche of the giant (8 meters) statue of the Virgin Mary. Unfortunately, these mosaics also did not survive the wartime bombings.

A pre-World War II postcard showing the statue and mosaics still intact on the chapel.

The mosaics formed a background of gold with blue stars.

Malbork Chapel with the empty space that previously featured the mosaics and the Virgin

In 2008, an advertisement for a local religious organization showed what the chapel used to look like.

Sources:
The Architect and Contracted Reporter: A Weekly Illustrated Journal of Art, Civil Engineering and Building. "Mosaics in Germany." Vol. 5, April 8, 1871. 182.
Castles and Palaces of the World
Wikipedia
Malbork
pBase gallery
forum Marienburg.pl
Akpool.de
Stadtapartment
Mysteries and Curiosities of Malbork Castle

Church of the Immaculate Conception, Farm Street

Architect Joseph John Scoles designed this Roman Catholic Church that was built 1844-49 and which is run by the Society of Jesus (Jesuits).

Henry Clutton designed the church's outer aisles and several chapels including the Chapel of the Blessed Sacrament (also called the Sacred Heart Chapel) in 1860, which may be why his name is associated with Salviati's Venetian mosaics from around the same time that are located above A.W.N. Pugin's high altar.

Presented in 1875, the two mosaic panels depict the Annunciation and the Coronation of the Virgin, respectively.

Sources:
Wikipedia
Barr, Sheldon. Venetian Glass Mosaics: 1860-1917. London: Antique Collectors' Club, 2008. 125.
Wheatley, Henry Benjamin and Peter Cunningham. London: Past and Present. Vol II. London: John Murray, 1891. 31.
Fr. Lawrence Lew, OP's flirck Photostream
Evinson, Denis. Catholic Churches in London. Wiltshire: The Cromwell Press, 1998. 44.
Hibbert, Christopher, et. al. The London Encyclopaedia. 3rd ed. London: Macmillan, 2008. 170.
Brian Harrington Spier's flickr Photostream
Rex Harris' flickr Photostream