Ever hear of the Alhambra water purification and bottle delivery service in the USA? Well, this is where they get their name. In Granada, Spain there is an amazing fortress and royal home dating back to the 10th century or so. On a rocky hill high above the River Darro, protected by mountains and surrounded by woods the Alhambra rises above Granada. In the morning and evening the imposing castle glows with reddish tones. Swallows are especially active at these times as well.