In some parts of Spain you can be fined for being in the street in your bikini or swimming shorts. Being bare-chested can also lead to a fine. And in Magaluf you cannot drink alcohol on the street between 10pm and 8am.
Concealing your face in public places in France or Belgium is illegal. This includes balaclavas, full veils or any other garment or mask that covers your face. You can be fined for this, even if you are a tourist.
In the cities of Venice and Florence, you may be fined if you drop litter. In Florence it is an offence to sit on steps/courtyards or to eat and drink outside the main churches and public buildings.
In Greece, indecent behaviour, including mooning, is not tolerated. The police can arrest you and you can be fined heavily and put in prison. Your travel insurance may not cover you if you have been drinking.
In Egypt, although homosexuality is not illegal, homosexual acts in public are illegal and there have been a number of arrests and jail time for those breaching Egyptian laws on public decency.
Australia has strict quarantine rules in order to keep out pests and diseases that could affect plant, animal and human health. All luggage is x-rayed on arrival. Your contaminated items can be confiscated and destroyed, and you could get a large fine.
And in America, laws are different in each state, so it would be a good idea to double check what the laws are in the ones you will be travelling in. Although be aware that jaywalking – not crossing the road at the designated area or when the light is red – can get you a fine.
General rules for holiday travels
You must show some form of identification if asked by the police. In most cases, a photocopy of your passport should do, but you may be asked to produce the original document at a later point.