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

Ireland, County Sligo, Castlebaldwin, Carrowkeel Megalithic Cemetery.

Ireland, County Sligo, Castlebaldwin, Carrowkeel Megalithic Cemetery, View from the summit over one of the cairns..

Ireland, County Sligo, Castlebaldwin, Carrowkeel Megalithic Cemetery, View from the summit over two of the cairns..

Indonesia, Java, Central, Borobudur Temple ruins, Buddhist monument constructed in the 9th century AD.

Indonesia, Java , Central, Borobudur Temple ruins, Buddhist monument constructed in the early 9th century latticed stupas on the upper circular terraces.

Indonesia, Java, Central, Borobudur Temple ruins. Buddhist monument constructed in the early 9th century latticed stupas on the upper circular terraces, Mount Merapi in the distance.

Indonesia, Java, Central, Borobudur Temple ruins. Buddhist monument constructed in the early 9th century. Latticed stupas on the upper circular terraces.

Indonesia, Java , Central, Borobudur Temple ruins, Buddhist monument constructed in the early 9th century AD, Mount Merapi in the distance.

Belgium, Brussels, The Atomium, Graphic close up detail of some of the spheres of the Atomium.

Belgium, Brussels, The Atomium, Graphic close up detail of some of the spheres of the Atomium.

Belgium, Brussels, The Atomium, Graphic close up detail of some of the spheres of the Atomium.