Ireland, County Sligo, Castlebaldwin, Carrowkeel Megalithic Cemetery, Facade of one of the cairns known as Cairn H with entrance doorway visible..

Germany, Baltic, Kiel Canal, Lighthouse near canal entrance and passing yacht.

England, London, Chinatown entrance to Gerrard Street with Chinese Gateway Arch.

Republic of Ireland, County Wexford, Ferrycarrig, Irish National Heritage Park, Ring Fort entrance.

Republic of Ireland, County Wexford, Ferrycarrig, Irish National Heritage Park, Ring Fort entrance.

England, London, Tate Britain, Looking down on the modern staircase from the entrance rotunda.

England, London, Tate Britain, Looking down on the modern staircase from the entrance rotunda.

England, London, Tate Britain, View of the entrance rotunda with circular staircase entrance in the centre.

England, Richmond upon Thames. Hampton Court Palace, Base Court.

England, Richmond upon Thames. Hampton Court Palace, Clock Court.

England, London, Tate Modern Art Gallery as seen from the Millennium Bridge.

England, London, Tower Bridge, The West Gate and west wing of the building.