<http://schema.org/keywords>
"mazovian, square, Radom, poland, street, tourism, architecture, window, town, old, wall, house, building, monument, landmark, city, roof, church, history, historic, catholic, tower"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/19099059/ancient-streets-of-radom-by-viktor-korostynski>