evidence: Long famous as the "key to the Mediterranean," Gibraltar is a British Overseas Territory. Overlooking one of the world's busiest shipping lanes, the "Rock of Gibraltar," as it's still often known, rises out of the sea on the east side of Algeciras Bay and is linked to mainland Spain by a narrow isthmus. The town of Gibraltar itself lies on the west side of the Rock. For such a small country — it only covers an area of four square kilometers — Gibraltar certainly has more than its fair share of tourist attractions and famous sights. [...] Viva España: If you didn't begin your journey in Spain, you're going to want to take advantage of Gibraltar's proximity to popular Spanish tourist destinations within an easy drive. Topping your list should be the attractive seaport of Cádiz, a must-visit for its magnificent Costa de la Luz beaches, as well as its great shopping and entertainment opportunities.