Read about Saqqara or watch the recent documentary about it if you want to see some of the most recent large discoveries. It is likely there are many more significant tombs that have yet to be discovered.

So, that spot at the top of the door frame where there are 4 screw holes is where the standard pneumatic door closer would have gone, you can even see the mounting bracket in the link provided and how it matches. If there was one installed on this door, there would be some screw holes in the top of the door. If not, then this door was replaced with this different style of closer that I have also never seen before.

I'm not exactly sure if the sliding bar that's on there now is supposed to provide some spring force, it looks like it's just for guidance and there is supposed to be a pneumatic cylinder mounted there as well, but I could be wrong.

It will be fine, the key with pressure washing is to keep the nozzle as far away from the surface as you can, although with an 1800 PSI pressure washer you will have a hard time damaging wood unless you put the nozzle right on the surface, or use the narrow angle jet-type nozzle which don't have much for anything except extremely durable materials like steel. If you have never used a pressure washer I would recommend testing out the various nozzles and distances on a piece of scrap wood so you can get a good idea of how easily it might damage something.

Honestly, I live in the northeast where it gets extremely humid and I've been pressure washing yearly for two decades, I can't say I've ever permanently damaged anything, but you obviously want to be careful with anything that's painted (although a proper exterior paint, applied correctly, should be able to be pressure washed without stripping it) or finer decorative materials.

Also, my personal suggestion for an electric pressure washer having been through many crappy ones is anything by AR Blue, inexpensive but the parts that matter are good. The one I have now ended up running for multiple hours overnight while dry (a lesson to never leave them plugged in...) and it was so hot I thought for sure the pump would have failed, and was surprised the thing didn't short circuit or catch fire, but it's been years and I am still using it with no problems.

I have a pool shed in the northeast that gets heavy moss growth under trees, I pressure wash it yearly and it does not damage the shingles. The trick is to use a lower pressure electric one with a wide angle nozzle at a reasonable 8-12" distance from the surface. Also, you obviously need to direct the spray downwards towards the edge of the roof.

If you go using the high-pressure nozzle on a gas 3200 PSI pressure washer, then yeah you're going to fuck your shingles up.

It does get tiring when it seems all the posts from this subreddit that end up on my front page are female nudes. When I actually visit the subreddit though it's clear there is far more here than that. For the most part, I don't click anything here that's NSFW anymore because I pretty much know what it will be.

Honestly, anything made by the BBC Natural History crew are all equally great. Planet Earth did a fantastic job of giving a general overview of the planet but it hardly scratched the surface of what's actually out there to be filmed. Frozen Planet II just recently came out and it's equally incredible, and Planet Earth III is supposed to come out soon, but there are a few hundred other nature documentaries by the BBC that don't get nearly the recognition they deserve, and a lot of the older ones have been re-scanned and released in HD like Attenborough's Life on Earth.

I think one of my all-time favorites is Life In The Undergrowth, filmed using macro lenses that make even the smallest insects incredibly detailed, an entire world we can't see with the naked eye.