Tower of Jericho
The Tower of Jericho (Arabic: برج أريحا) is an 8.5-metre-tall (28 ft) stone structure built in the Pre-Pottery Neolithic A period around 8000 BC. It is part of Tell es-Sultan, a UNESCO World Heritage Site in the State of Palestine, in the city of Jericho, consisting of the remains of the oldest fortified city in the world. The Tower of Jericho has been described as one of the world's oldest towers, one of the world's oldest stone buildings, and one of the oldest works of monumental architecture.