I called in to Westminster Cathedral, which is a Roman Catholic cathedral, built between 1895 and 1903 - it's built from brick, so on the outside it has a flavour both of Victorian municipal building and Italian church - I can't help but think that the architect had seen Siena but didn't have the budget (or the marble)
Inside, it isn't completely finished, but those parts which are complete are Neo-Byzantine, with mosaic ceilings. (I do have a very soft spot for a well done mosaic ceiling)
It's impressive, although I couldn't stay long due to the amount of incense!
My second bit of touristing was a visit to the London Guildhall art gallery, to see their (temporary) William De Morgan exhibition. I am very fond of William De Morgan's work, from when I first came across his work in the Manchester Art Gallery, years ago.
He was a contemporary, and friend of William Morris', and designed and created ceramics - dishes and tiles (including tiles explicitly designed to complement Morris's wallpaper designs.
What I didn't know before seeing this exhibition was that De Morgan's father was a celebrated mathematician (Augustus De Morgan) who was an agnostic who became a professor at University College London as, unlike Oxford and Cambridge, no theological test was required. He also taught Ada Lovelace. It seems likely that his skills in maths and geometry influenced his son's designs.
I also learned that William De Morgan designed a set of tiles for Charles Lutwidge Dodgson (better known, of course, as Lewis Carroll), who was a friend of his, which were installed round the fireplace in his college rooms: they feature Dodos and dinosaurs, among other things. (They are still in the College, but the exhibition has photos)
Sadly the Greast Hall at the Guildhall was not open, so I couldn't look round the hall.
However, the church next door, St Lawrence Jewry, was open, so I popped in for a while. The church was designed by Christopher Wren, but was badly damaged in the Blitz, leaving the walls and facade standing but not much else, so the interior and stained glass are modern. I rather liked St Michael.
But the best known of the windows is the Christopher Wren window, which features the man himself (flanked by woodcarver Grinling Gibbons and Master Mason, Edward Strong, with the architect and Vicar at the time of the restoration shown at the bottom of the window.
All very enjoyable. As was the duet being played on the church's grand piano, while I was there. It wasn't clear to me whether they were official, as it were, or if they had, like me, simply popped in in passing but (unlike my) had the skills and talent to play wonderful piano duets!
And in between, I got to meet up with one of my cousins, and to have a really enjoyable catch up.