Deep in Brooklyn there's a beach you definitely wouldn't swim at, unless you're an archaeologist.

On the south-east coast of England sits Covehithe: a little Suffolk village going back at least a thousand years. By the end of the century, it'll likely have fallen into the sea. Here's why no-one's planning to save it.

"Life support system" were the three key words that convinced me to do a video about an aquarium. Because yes: behind the scenes at The Deep, an aquarium in Hull, there's a life support system, and it deserves that name.

In Knaresborough, in Yorkshire, sits Mother Shipton's Cave. Folks there have been charging admission for nearly 400 years, and the star of the show is a "petrifying well". A few folk legends do actually turn out to be true.

Perranporth Beach, in Cornwall, is famed for being the "Lego beach". The truth is more complicated.

Gruinard Island, in the north-west of Scotland, was where Britain tested its biological weapons. That story's been told many times: but I found something in the archives that I don't think anyone's ever noticed before.

Barra Airport, in Na h-Eileanan Siar in the west of Scotland, is unique: it's the only commercial airport where the runway's made of sand, and tide covers it up twice a day. Here's how it works.

In Ocado’s grocery warehouse, thousands of mechanical boxes move on the floor. Are they individual robots? Are they one giant hive mind

In Claughton, Lancashire, the Forterra brickworks produces 50 million bricks per year from shale that’s quarried a mile and a half away, transport by Britain’s last aerial ropeway; once common, but gone by 2036

Iceland has a new volcano, Fagradalsfjall. I wanted to visit, to talk about the infrastructure around it, and how the country deals with a new and dangerous tourist attraction. It didn't go well...

On the German coast of the Baltic Sea, there's a tourist attraction that I think is very strange: the "Tauchgondel", a room that sinks under the waves and lets you go diving... without getting wet.

Ness of Brodgar, in Orkney, is one of the most important archaeological sites in western Europe. This week, it was covered by old, worn-out tires. Here's why. ■ Thanks to the Ness team! More about them, volunteering, and donating: https://www.nessofbrodgar.co.uk/

The flight between Papa Westray and Westray takes 80-90 seconds and covers about 2km. Why does it exist? And what's it like? On a rainy day in the Orkney Islands, I went to find out.

Over the Manchester Ship Canal, you'll find the Hulmes Ferry, the Thelwall Ferry, and the Warburton Toll Bridge. They're all strange in their own way, all under the control of one company, and all dating back to old laws and legal documents from a hundred years ago. I was in the area, so I stopped by, and found that things might be changing soon.

The Nürburgring Nordschleife is the longest permanent racetrack in the world: 21km of unforgiving blind corners and hills, nicknamed "the Green Hell". Oh, and some days, it's also just a public toll road with no speed limit.

In Darmstadt, Germany, there's the Eisenbahnbetriebsfeld: a model railway connected to actual railway signalling equipment, so that controllers can learn without putting any real trains in danger. I got to learn the very basics. ■ More about the railway (in German): https://www.eisenbahnbetriebsfeld.de/

An elevator that can go smoothly from horizontal to vertical isn't possible... right? Turns out that the conventional wisdom is wrong, and the Schmid Peoplemover has been doing that for many years.

On a little canal off the Elbe river in Germany, sits the McBoat: the world's only paddle-through McDonalds. It seemed like the sort of thing I should investigate.

The Brünnlisau shooting range in Switzerland has its targets on the other side of a major road. And it's safe. Here's how and why. Thanks to everyone at the Schiessanlage Brünnlisau!

In Lübeck, Germany, there's one of several eHighway test projects: overhead catenary wires, where electric trucks with pantographs can pull power directly from the grid. Thanks to everyone who gave so much time to make this video possible!

At a pumped storage plant in western Austria, a company called Energy Robotics is testing robot dogs for inspection. All the fancy Boston Dynamics publicity stunts aside: are the robots actually useful? ■ As ever: this is not an advert, Energy Robotics and illwerke vkw had no editorial control. They just asked "do you want to fly your drone inside the Obervermuntwerk II hydroelectric power plant to film a robot dog", and of course I immediately said yes.

In Brienz/Brinzauls, a small village in the east of Switzerland, there's a village slipping into a valley and a road that's surprisingly dangerous. Thanks to everyone I interviewed: pull down the description for links and more details!

The Lorenbahn, the Lüttmoorsiel-Nordstrandischmoor island railway, is famous for the tiny, private trains that take residents to and from the mainland. But that's not why it was built: and it's got a more useful purpose as well.

In most of the world, inhaling radon for pain relief sounds like a bizarre idea. In some places, though, it's so accepted that it's prescribed by doctors and covered by health insurance. And I have no idea how to talk about it.

Bridgwater Carnival, in Somerset, has a long tradition of squibbing: a huge procession of people holding fireworks right above their heads. This year, I got the chance to be one of the squibbers.

The Thames Barrier is a wonder of engineering. If it fails, then London floods. Here's how the engineers there make sure it doesn't fail.