Mull Hill (also called Meayll Hill) is a small hill at the southern end of the Isle of Man, just outside the village of Cregneash. It is the site of a chambered cairn called Meayll Circle. Near the summit of the hill also lie the remains of a World War II Chain Home Low RDF station.
Mull Hill Stone Circle is a unique archaeological monument. It consists of 12 burial chambers placed in a ring, with 6 entrance passages leading into each pair of chambers. Sherds of ornate pottery, charred bones, flint tools and white quartz pebbles have been found in burial chambers. This archaeological monument was built around 3500 BC; it is a site of legends with diverse stories about haunting.References:
The city walls of Avila were built in the 11th century to protect the citizens from the Moors. They have been well maintained throughout the centuries and are now a major tourist attraction as well as a UNESCO World Heritage Site. Visitors can walk around about half of the length of the walls.
The layout of the city is an even quadrilateral with a perimeter of 2,516 m. Its walls, which consist in part of stones already used in earlier constructions, have an average thickness of 3 m. Access to the city is afforded by nine gates of different periods; twin 20 m high towers, linked by a semi-circular arch, flank the oldest ones, Puerta de San Vicente and Puerta del Alcázar.