Society for the Propagation of the Gospel in Foreign Parts, Tufton Street SW1

The SPG was founded in 1701 to bring religion to British colonies in the Americas, and became extremely prosperous when a plantation owner bequeathed it a huge estate in Barbados. The Society then focused on the "conversion of heathens and infidels."
John Strype's Survey of the Cities of London and Westminster (1720) described the Society's Seal thus:

"It is the Representation of a Ship under full Sail, making up towards a Foreign Land; the Natives all about near the Shoar, with their Hands stretched out, or lifted up, and some on their Knees. A Minister in a Gown in the fore part of the Ship looking towards them, with the Gospel open in his Right Hand. And a Label in the middle of the Seal thus inscribed, TRANSIENS ADJUVA NOS: The Sun in the Firmament brightly shining out"

The motto comes from the Acts of the Apostles 16:9, in which a vision of a man from Macedonia beseeches St Paul to 'come over and help us'.
The desire to save the immortal souls of the natives was not seen as in any way inconsistent with owning hundreds of slaves on the Barbados estate.
This stone version of the seal looks much older than 1907, the date of the SPG headquarters building designed by Sir William Emerson, where it now appears over the front door. Perhaps it was preserved from the original offices.
Emerson did contribute the statue in a niche on the corner of the building, which is of St Paul holding a closed book (his Epistles) and the sword with which he was martyred.
The SPG moved to Lambeth in 1987 and the Arts Council took it over, restructuring it and using the door in Great Peter Street as the main entrance. Above it, they carved their initials in stone - a rather nice touch considering the obvious thing to do would have been to get a thrusting modern designer to do a sign in chrome, neon and plexiglass.

Old Public Baths, Cheshire Street E2

The old public baths and washhouse in Bethnal Green was built in 1898 to provide baths for washing both bodies and clothes. The architect, R. Stephen Ayling, specialised in social works such as hostels, abbatoirs and public conveniences. His design was praised at the time for providing space for prams, "in which the washers usually bring their linen. In most of the London baths this been omitted, with the result that the waiting halls are often impassable."
The separate entrances for men and women are signed by scrolls held by elegant cherubs.
The place was converted into flats and a boxing club in 1999.

Yorkshire Grey, Theobald's Road WC1

The Yorkshire Grey was breed of horse favoured by medieval knights for its load carrying capacity, a very important feature when armour got so heavy they had to be craned into the saddle.
In the 18th century the Yorkshire Grey was adopted by the stage coach companies as the preferred engine, which explains the number of pubs with that name on the old trunk routes.
So the rather Charge-of-the-Light-Brigade cavalryman that rides on the roof of the Yorkshire Grey in Holborn, built in 1877, is slightly confusing - such a heavy horse was not particularly in demand at that period. Perhaps the carver (said to have been William Plows) thought that a military man would have more popular appeal than a public transport hack.
If he thought that, he was wrong. The figure has been described as 'an inflated tin soldier on horseback'.

Bank of Scotland, 38 Threadneedle Street EC3

The side entrance to the HBOS offices in Threadneedle Street has a wrought iron grille with the words South Sea House, and indeed the place is on the site of the offices of the South Sea Company, set up in 1711 to trade with South America.
The current building was designed in 1902 for the British Linen Bank by Scottish architect John Macvicar Anderson. He designed the grumpy-looking Neptune on the keystone of the arch, with cornucopia pouring money over his head.
Above that is a charming relief showing two sailors lounging on the dockside, one with navigational implements including a telescope, a lead line and a chronometer. The other sits next to bales of exotic south seas produce. A forest of masts rises behind.
Anderson said he recovered the work from the studio of the sculptor John Bacon Junior, who died in 1859. Apparently, the South Sea Company had commissioned it but never paid up, so Bacon held on to it.
It is a wonderful bit of propaganda, hinting at the boundless riches that the Company would bring to London's docks.
It is ironic that the building should have become the London HQ of HBOS, considering the pivotal role that company had in the recent property bubble.

Dirty Dick's, Bishopsgate EC2

I've always had a soft spot for Dirty Dick's, even though it has always been bogus and gets more bogus with every new round of public hygiene legislation. When I used to go there every so often in the early 1970s they still had the odd cobweb, but even the dead cat is behind glass now, apparently.
The original Dirty Dick was a Regency buck called Nathanial Bentley, a dandy in his youth who was so distressed by the death of his fiancee he thereafter refused to wash. "I'll only be dirty again tomorrow," he would say. He was not a publican, however - he owned a warehouse known for its filth. Letters addressed to 'The Dirty Warehouse' would be delivered to him. It was only after his death that an enterprising publican opened a drinking den devoted to his memory.
The present building was put up in 1870 and is crowned with a carving not of Dirty Dick but of a mitre and gateway - Bishop's Gate. The bishop in question, incidentally, is St Erkenwald, Bishop of London in the 7th century.

Lambeth Mission, Lambeth Road SE1

The Lambeth Mission was set up by the first Methodists, converted by John Wesley himself when he preached at Kennington Common. Between the wars it was made famous by the energetic and forward-looking minister Thomas Tiplady, author of such hymns as "Above the hills of time the cross is gleaming."
Tiplady wanted to harness the new medium of film to the cause, and collaborated with a Methodist lay preacher called J. Arthur Rank to produce wholesome films with a Christian message which were shown at the Mission.

In 1945 the chapel was hit by a V2 and was rebuilt in 1950. The architect was Alec Gavin, and Tiplady also commissioned Bainbridge Copnall to provide a monumental sculpture for the front.
Copnall was headmaster of the Sir John Cass Institute of Arts and Crafts at the time, and had been scouring London's bomb sites for nice bits of stone. It is fitting that debris from the hell that was the blitz should be used to create this uplifting and optimistic piece.
Officially called The Word, it is better known as The Lambeth Street Preacher. The minister points heavenward, while a couple at his feet hold their child up to clasp the Bible in his hand.
Copnall was not very happy with the final work, as he wanted it to have a rough finish and to stand free in its niche. The architect insisted that it be given a high finish and for it to be enclosed in a brick surround.
Of course, Copnall could not possibly have predicted that many years later his street preacher would look just as if he was calling heaven on a mobile phone.

Shoreditch Telephone Exchange, Shoreditch High Street E1

There was a time when public buildings were respected, even utilitarian structures like the telephone exchange in Shoreditch.
The building, erected by the General Post Office in 1956, is plain but carefully proportioned and adorned with this nice figure of a nude telephone engineer winding cables round the Earth - those are electromechanical relays above his head.
The exchange has a certain notoriety among Cold War conspiracy theorists as one end of a secret nuke-proof tunnel carrying government phone lines. It links up exchanges all the way to Shepherd's Bush.
Now the building is shabby and ill-used. The entrance is covered with grilles and metal doors, the windows are covered with stick-on plastic sheeting and it looks as if BT keeps the place on mainly as a place to park its vans.