That image is a bit shit but fuck it.
I loved the bit in Austerlitz where he talks about how forts developed after the middle ages into these increasingly complex shapes, intended to render them proof against increasingly powerful artillery, until by WWI they had ground plans like some sort of mutant alien crab.
Harlech has the official steepest street in the world nowHarlech is where I lost my cherry. It has one of the steepest approaches imaginable. You could try walking it but knee brutality awaits, but driving up it is a ‘mare too.
Have you heard of the Roman siege at Alesia? They did the former then bypassed the latter for full slaughter mode.I would have just got my army to build a wall around the castle. Leave them there.
If you can be arsed, it has some gorgeous beaches just below it. Big holiday weekend for northerners with Shell Island and you can take in Caernarfon too. Just hold your nose at the Prince Charles investiture bits.