The MI5 building Thames House, Millbank, London, features another arch...

I'm not sure about all the occult meanings of the triangle emblem for MI5 (M=1000; I=1; V=5), but at the top is the "I" for the all-seeing eye (of Lucifer, Odin or Horus?).
And the crown is in the centre, in control...

https://www.newsnfo.co.uk/pages/British ... 20Logo.htm
See the following church at the Prinsengracht "De Duif" (the dove) from the 1850s, designed by Theo Molkenboer.
See the gold eagle (that isn't a dove!) in the blue circle in the triangle, above the 2 arches, and below the cross, 6 pillars at ground level, 3 triangles.

Arguably the most famous Amsterdam church is the Westerkerk (West church), with the tower Westertoren for centuries the highest building in the city, designed by Hendrick Cornelisz de Keyser and built from 1620 to 1631 (with the tower finished in 1638).
I was looking at the tower one day and noticed 2 arches (gates) right above the clock. And also what looks like an arch below the Amsterdam coat of arms.
I also see lots of symbolism in the rest of the church, but not quite sure what to make of it.

Note the Von Habsburg crown on top (I can remember when the colour was yellow instead of blue).
Amsterdam had supported Holy Roman Emperor Maximilian I (Von Habsburg, 1459 - 1519) in some wars in the Netherlands, and were "rewarded" with the right to use "his" crown in the Amsterdam coat of arms (also with the crown). Maximilian I was installed as Knight of the Garter by King Henry VII of England in 1489.
See the inside of the Westerkerk, with the arches and pillars.

(in Dutch) https://archive.md/gD4Ea
https://nl.wikipedia.org/wiki/Westerkerk_(Amsterdam)
Another church in (the east of) Amsterdam is the Christus Koningkerk (Christ King church), at the James Wattstraat.
It was finished in 1959, and only in use as a church until 1996.
The strange thing is that it doesn't look like a church at all.
Instead of a tower, it features a double arch, with the cross at the centre on top (this photo is probably from the 1960s).

(in Dutch) https://nl.wikipedia.org/wiki/James_Wat ... _Amsterdam
It reminds me of the following arch that I've previously posted about.
To me it looks like the "cross" at the Christus Koningkerk symbolises both "Christ" and the "sun"...
.Firestarter wrote: ↑Sat Apr 03, 2021 7:57 pmThis is how it looked a long time ago, before WW II probably. Picture taken from the roof of the Amsterdams Lyceum?
There is a statue of a woman flanked by 2 lions, with behind her the twin pillars, with the arched sun on top, with 13 rays.
Behind, below it are 6 arches on both sides of the twin pillars, making a total of 13 arches.
South of the Christus Koningkerk is Frankendael.
Unfortunately the following isn't completely on-topic, but Frankendael does feature a gate, which could be called an "arch", with the gold Mercurius in the blue circle...

Frankendael was orginally a vacation home and later become home to the wealthy Gildemeester family. Frankendael still exists as a park.
In 1794, when the Batavian Republic (Bataafse Republiek) was founded as a threat to the House of Orange-Nassau, Jan Gildemeester got an important government position.
When shortly thereafter the French army of Napoleon invaded, to turn the Netherlands into a monarchy, Kraijenhoff and Gildemeester welcomed the French with open arms!
They had the wonderful idea to plant a freedom tree (Vrijheidsboom) on the Dam, so they took a spruce tree from... Frankendael that sort of was the start of the Kingdom of the Netherlands.
So in a sense, Frankendael IS the foundation of the Netherlands.
See the fountain with the 3 statues - Amphitrite, Triton (their son) and Neptunus - made in 1714, with the Frankendael house in the background.

(in Dutch) https://archive.md/eVy1V