Every list of “weird world laws” online is, frankly, mostly fiction, repeated facts nobody bothered to check, laws that were repealed decades ago, or rules that never existed at all. We went looking specifically for the ones that are genuinely real, still on the books, and in some cases, still actively enforced. Here are ten that passed the test.
Related read: if quirky, under-the-radar facts about places and customs are your thing, you’ll probably also enjoy our piece on Shani Shingnapur, the Indian village where no house has a door.
The law: Buying or selling chewing gum is illegal in Singapore, with narrow exceptions for therapeutic gum sold through a pharmacist.
Highlight: This isn’t a forgotten relic, it’s actively enforced and deeply tied to Singapore’s obsession with public cleanliness. The ban was introduced specifically to stop gum from being stuck on train doors, pavements, and public seating, a problem city authorities had struggled to control for years before the law passed in 1992.
The law: Visitors are prohibited from wearing high heels at archaeological sites like the Acropolis.
Highlight: This one exists purely for preservation, not fashion policing. The sharp, concentrated pressure of a stiletto heel can damage centuries-old stone surfaces in a way that regular footwear simply doesn’t, which is why Greek authorities enforce it specifically at historic sites rather than city streets generally.
The law: Tibetan Buddhist monks are legally required to obtain government permission before they can reincarnate.
Highlight: This sounds like satire, but it’s a genuine regulation introduced by Chinese authorities in 2007, widely understood as a political move to control the selection of future religious leaders, including a future Dalai Lama, rather than a genuine theological position.
The law: Posthumous marriage is legal in France under specific circumstances, provided there’s clear evidence the deceased intended to marry before they died.
Highlight: Rooted in the Napoleonic legal tradition, this law has actually been used in modern times, most notably by partners of people killed in disasters or accidents, as a way to formalise a relationship that death interrupted before a wedding could happen.
The law: Under the UK’s Salmon Act 1986, it’s illegal to handle salmon “in suspicious circumstances.”
Highlight: As vague and almost comedic as it sounds, this is a real anti-poaching measure, deliberately written broadly so that anyone caught with illegally caught salmon, even without direct proof of the catch itself, can still be prosecuted.
The law: It’s illegal to step on, deface, or disrespect Thai banknotes and coins.
Highlight: Thai currency carries the image of the King, and this law connects directly to the country’s strict lèse-majesté laws protecting the monarchy from insult, making this one of the more seriously enforced entries on this list rather than a quaint formality.
The law: The Philippines and Vatican City are the only two jurisdictions in the world where divorce remains entirely illegal for most citizens.
Highlight: In the Philippines, this is tied closely to the country’s deeply Catholic legal framework, with annulment serving as the only narrow legal alternative, a process that’s typically lengthier, costlier, and harder to obtain than a standard divorce elsewhere.
The law: Gambling for cash is illegal in Japan, yet the country’s wildly popular pachinko parlours operate legally in plain sight.
Highlight: Winners are paid in prize tokens rather than cash inside the parlour itself. Those tokens are then exchanged for money at a separate, technically unaffiliated booth nearby, a legal workaround so well established it’s become a completely normal part of Japanese nightlife.
The law: Danish parents must choose their child’s first name from an official, pre-approved government list of roughly 7,000 names, or apply for special permission to use one that isn’t included.
Highlight: The law exists specifically to protect children from names that could invite ridicule or confusion later in life, with a government committee reviewing and rejecting unusual name requests on a regular basis.
The law: Switzerland’s animal welfare regulations prohibit keeping certain social animals, including guinea pigs, in complete isolation from others of their own species.
Highlight: The country takes animal loneliness seriously enough that services have popped up specifically to “rent” a companion guinea pig for owners whose pet has lost its cage-mate, so the surviving animal isn’t left to live out its life alone.
Are these laws actually enforced, or just technically on the books?
It varies. Singapore’s gum ban, Thailand’s currency law, and China’s reincarnation regulation are actively enforced. Others, like the UK’s salmon law, are used occasionally, mainly as a legal tool in specific poaching cases rather than everyday policing.
Why do countries keep strange laws like these instead of repealing them?
Repealing a law typically takes active legislative effort, time, and political will. If a law isn’t causing obvious harm, it often simply stays on the books indefinitely, sometimes for centuries, simply because nobody prioritises removing it.
Is it true most “weird law” lists online are inaccurate?
Largely, yes. Many widely shared “crazy laws” circulating online are either exaggerated, long since repealed, or were never real laws to begin with, often originating from satire or outdated anecdotes that got repeated as fact.
Which of these laws is the most actively enforced?
Singapore’s chewing gum ban and Thailand’s currency protection law are among the most consistently enforced, since both tie directly into broader national priorities, public cleanliness in one case, royal protection in the other.
Do tourists need to worry about breaking these laws by accident?
Mostly no, since most of these laws target specific actions unlikely to happen accidentally. The clearest exception is Greece’s high heel rule at archaeological sites, which catches unaware tourists more often than any other law on this list.
Ask most people to name a West African cuisine, and Nigeria, Ghana, or Senegal usually… Read More
In Indian tradition, the hand has never been considered merely a physical feature. For centuries,… Read More
There is an old Indian belief that the face carries clues about a person's nature,… Read More
You do not need a designer home, imported furniture or a massive renovation to make… Read More
In May 1925, a small item buried in a Paris newspaper caught the eye of… Read More
Just a short flight from the Andaman Islands sits a patch of forest roughly 20… Read More
This website uses cookies.