If you enjoy learning things, you’ll probably know how good it feels to uncover a new topic that you can really sink your teeth into. And with such a vast and interesting world around us, there really are no limits to what knowledge we can gather.
Choosing an area of interest can be tricky, but there are plenty of often-overlooked subjects that can make for fun and fascinating research projects.
With that said, here are 10 weird and wonderful topics that could provide you with hours of entertainment.
If you’d like to start learning today, why not browse over 210,000 online courses on the Udemy website?
1. Sharks
Having been around for at least 420 million years, sharks have survived at least four of the ‘big five’ mass extinctions – which is undeniably impressive. They were around long before the dinosaurs, and even before the first tree!
Today, there are over 500 species of shark, including the infamous great white shark, the sometimes-pink goblin shark, and the harmless basking shark (which is Britain’s largest fish).
As apex predators (meaning they’re top of the food chain), sharks help to keep marine ecosystems in check. But, sadly, overfishing and illegal fishing of sharks for their fins means that numbers are declining worldwide.
If you’d like to discover more about these fascinating creatures, there are plenty of YouTube videos containing interesting shark facts and footage. Or, you might want to check out Udemy’s course: Sharks – The Ultimate Guide which will teach you all about sharks and their behaviour.
Another fun way to learn more about sharks is to download the free OCEARCH app. Here, you can track sharks in the world’s oceans and find out their weight, species, and where they’ve previously been!
2. Laws from around the world
Laws differ quite dramatically around the world, and learning about them can be a great way to find out more about other countries and gain new perspectives.
For example, some of the most unusual laws we came across during our research were…
- In Mexico, cyclists who take their feet off the pedals can (technically) be prosecuted.
- New parents in Denmark must choose from 7,000 government-approved names for their children.
- In Japan, if your waist size measures over 33.5 inches (men) and 35.4 inches (women) and you’re between the ages of 40 and 74, you could get in trouble with the law. People not complying with these requirements are reported to the government for ‘re-education’.
For a look at more quirky rulings, check out this list of 175 strange laws from solicitors, Wright Hassall. Or, why not read our article; Which countries have the strictest laws and punishments in 2024?
3. Castles
Whether you’re a history buff or not, the enchanting nature of castles can be difficult to ignore – and each one has a captivating story to tell.
For example, Bojnice Castle in Slovakia (pictured above) looks like something from a fairy tale. It was first built as a wooden fort in 1113 and was gradually rebuilt in stone. Today, locals believe that it’s haunted by a woman wearing a black dress, who jumped from the castle’s tower to prove her innocence after being accused of adultery.
Another popular castle is the National Palace of Pena in Portugal, Lisbon, which sits on a hill overlooking the Portuguese Riviera, and looks like it’s rising above the clouds. Since it was built by a Portuguese king in 1839, it’s survived a devastating earthquake, been abandoned and reconstructed, and become a UNESCO world heritage site.
The best way to learn more about castles is to visit them – our articles, 15 of the best castles to visit in the UK and 17 of the most beautiful castles in the world, will hopefully get you inspired. Many castles can also be explored online, like the ones in this article from Trips to Discover.
Alternatively, YouTube has plenty of fascinating videos that’ll help you explore the magic of castles; from the most haunted to the most beautiful. It’s also worth checking out the websites of individual castles, as there are usually plenty of helpful resources available to support learning.
4. Tornadoes
If there was ever something to remind us of the power of Mother Nature, tornadoes are it!
Captivating, terrifying, and unpredictable, the strongest tornadoes have winds of more than 200mph. These gales violently rotate to form columns that reach from storm clouds to the Earth’s surface.
The widest tornado ever recorded was in El Reno, Oklahoma, in 2013 – measuring 2.6 miles wide, with speeds of over 290mph.
The sheer size and power of tornadoes make them incredibly interesting to learn about, and the internet is loaded with helpful web pages about the science behind them – such as this page from Future Learn on how tornadoes are formed. You can also watch footage of tornadoes and other extreme weather events on YouTube.
Depending on how dedicated you are to your tornado research project, you could also visit Severe Studios and watch live storm chasing online! regular checks as chasers will – of course – only go live once the action is happening. Though, there are plenty of previous storm-chasing videos to watch while you wait.
5. Houseplants
The world of houseplants is more immersive than it might appear on the surface! Houseplants are diverse – with different needs and personalities – and looking after them in the right way can be both a joy and a challenge.
For example, some plants – like leafy, elegant peace lilies – prefer a warm, humid environment with indirect sunlight and fairly frequent watering. Without sufficient water, they droop dramatically and perk up soon after having a drink; without sufficient humidity, leaf tips go brown; and too much sunlight will turn leaves yellow.
Other plants, like mysterious lithops (succulents which look like tiny stones), need full sun to thrive and a watering schedule that mimics the dry conditions of their native Africa.
It’s easy to get attached to our green friends and celebrate and mourn their highs and lows. And, along the way, there’s plenty of learning to be done about how best to look after them.
If you’re new to houseplants and aren’t sure which ones to choose, you might want to check out our articles; 10-low maintenance indoor plants that can add life to your home and 10 unique houseplants to upgrade your indoor space. Udemy also has a great course (Houseplants 101: A Beginner’s Guide to Indoor Gardening) that covers the basics!
6. UFOs
Whether you believe in ‘aliens’ or not, the phenomenon of unidentified flying objects (UFOs) is usually enough to pique anyone’s interest!
Put simply, UFOs are any strange, flying object in the sky that can’t be immediately identified or explained. Research has shown that UFOs are real, though this doesn’t mean that they’re alien spaceships.
However, what we do know with regard to the possible link between UFOs and aliens is that there are huge numbers of potentially habitable worlds in our milky way galaxy. In fact, NASA’s Kepler space telescope suggests that 50% of the sun-like stars in our universe could support rocky planets with life potential.
What’s more, last year NASA released a 36-page report which investigated hundreds of UFO sightings. While it found no evidence of alien life, it also said it couldn’t rule out the possibility. So, if you’ve ever been curious about UFOs, there’s never been a better time to wade knee-deep into the research!
You might want to start by reading about some of the most credible UFO sightings over the years on the History website. And, if you’d like to delve deeper, Udemy has an excellent course on the subject.
7. Capitals of the world
The vastness of our world means that plenty of us aren’t as clued up on geography as we could be.
For example, do you know what the capital of the Maldives is? Or the capital of Switzerland? Perhaps you do – but, if not, finding out can be a fun way to discover new places; maybe even some that you’d like to visit.
With there being 201 world capitals, remembering the names of all of them can be challenging. So a helpful way to really get to know each one is to learn something memorable about it: what makes it different? What’s the culture like? What’s it most famous for?
If you want to test your knowledge and find out how many world capitals you do know, you could take the Britannica quiz below.
8. Pet psychology
Pets use many signals to communicate with us – even a simple sneeze or yawn can send a message.
There’s also been a rise in the number of people using labelled buttons to train their pets and help them communicate better – Bunny the dog found internet stardom after being trained this way. Bunny can use buttons like ‘walk’ and ‘help’ to express her needs to her owner.
These advanced training techniques have led many to ask the question: are our pets even more intelligent than we may realise?
For those who’d like to find out and deepen their connection with their pet (or who just love animals and would like to understand them better), the study of pet psychology can provide an interesting insight.
Udemy has a beginner’s Animal Communication course that explores how to connect to the animal world and communicate with them.
A pet behaviourist is also a profession (we’ve listed it in our article on 12 interesting jobs working with animals) so, depending on how much it interests you, it could make for an exciting new career path!
9. Fashion through the years
Fashion has always been a hot topic of conversation – and the fact that it’s constantly evolving makes it all the more fascinating.
In Ancient Egypt people wore wax or perfume cones on their heads to hide their body odour; in the 15th century people wore long pointy shoes that were 50% longer than the length of their feet; and in the 19th century men wore corsets. Fast-forward to the 20th and 21st centuries and we’ve seen everything from cloche hats and shoulder pads to hotpants and wedge trainers.
Some fashion trends have been lost forever, while others have circled back around, such as 90s baggy jeans and quirky, patterned shirts.
A couple of the best places to learn about the history of fashion are the Victoria and Albert (V&A) Museum in London and the Fashion Museum in Bath – both of which have free entry. Reading books and magazines from the fashion period that you’re interested in can be helpful too, as can taking courses – such as the History of Colour in Fashion course from Udemy.
10. Forensics
If you’re into crime fiction or true crime, a more in-depth look into forensics might be right up your street.
Forensic scientists might examine fingerprints, handwriting, paint or chemicals, and digital evidence – among many other things – to piece crime scenes together. This insider’s guide from the BBC provides some insight into what it’s actually like to work in the field.
While you might not be considering a career in forensic science, it can still make for an intriguing topic of study for anyone who’d like a deeper understanding of how crimes are solved.
There are plenty of online forensic science courses, such as Udemy’s Intro to Forensic Science course.
The true crime section of our website can offer a good starting point for learning, with articles such as 5 chilling cold cases solved by DNA evidence. You may also like to browse upcoming criminology events on Rest Less Events.
Final thoughts…
From tornadoes and world capitals to fashion and forensics, there’s a whole world of knowledge out there just waiting to be explored.
Learning about an unusual subject is not just something fun you can do in your spare time, it also makes for a great conversation starter and can lend way to new ideas and perspectives.
We hope something in this list has piqued your interest. But, if you’d like more inspiration, why not check out our articles; 16 interesting online courses and 12 new skills that you can learn from home and how to get started.
To begin your learning journey, head over to the Udemy website to browse thousands of online courses.
Or, why not head onto Rest Less Events where we run around 100 talks, classes, and events every month?
What fascinating topics do you enjoy learning about? We’d love to hear from you in the comments below!