Lisbon
Population:
2.8 million
Money:
Banks are the easiest place to exchange your money in Lisbon, although most will charge a small commission so group your money together to get a better price. ATMs are widely available and offer good rates, just watch for charges from your bank. If you're low on cash eat a large meal at lunch, when the daily fresh fish dishes are great value.
Language:
Portuguese, English is fairly widely spoken in Lisbon, although not so much if you travel further afield.
Dialling codes:
+351 for Portugal followed by 21 for Lisbon
Watch for:
Pickpockets. Keep your valuables safe, preferably leave as much at your hotel as possible, and carry things on you in zipped pockets. A money belt can remove the worry if you have to carry important documents or lots of cash around.
Entry:
A valid UK passport will entitle you to stay up to three months as a tourist. If you did want to stay longer you can, but you'll need to apply for a Registration Certificate from the local town hall. You should make sure your passport is valid for the duration of your holiday for easier return travel.