Lying in the south of Arabia, Yemen is a complex country, bordered by Saudia Arabia and Oman. For those craving the most authentic experience of Arabia possible, Yemen is most certainly one to consider. Currently amid a civil war, tourists should tread carefully when heading here, but there's certainly plenty on offer to stir the senses with a tremendously rich Arabian history and culture. Its location adjacent to Saudi Arabia has meant that many of the oldest examples of civilisation have existed in Yemen, dating as far back as the 12th century BC. City life in Yemen is well worth experiencing, with Sana'a, the capital city, a UNESCO-listed location. Its dizzying mix of souks and mosques make for a fascinating sensory experience. If you're thinking of travelling to Yemen you'll need to be able to handle the heat: given its hot, tropical climate, temperatures in the summer easily top 40ºC, although winter temperatures are more comfortable, averaging around 20ºC.