Hot air balloon with Pyramid of the Moon in the background, Archaeological Zone of Teotihuacan, UNESCO World Heritage Site, Mexico, North America

Jantar Mantar, Open Air Observatory, Delhi, Uttar Pradesh, India, Asia

Jantar Mantar, Open Air Observatory, Delhi, Uttar Pradesh, India, Asia

Chapel with staircase and arch, Lychnostatis Open Air Museum, museum of traditional Cretan life, Hersonissos, Crete, Greece, Europe

Stairway in the Aviation Center, Deutsche Lufthansa AG, Frankfurt am Main, Hesse, Germany, Europe

Entrance to a rock church in the open air museum, UNESCO World Heritage Site, Goreme, Cappadocia, central Anatolia, Turkey, Asia

Ryanair passengers in a queue at the airfield waiting to board an airplane, Frankfurt-Hahn Airport, Rhineland-Palatinate, Germany, Europe

Stair arch, main building at back, chapel, Lychnostatis Open Air Museum, Museum of the traditional Cretan life, Hersonissos, Crete, Greece, Europe

Royal Kykkos monastery, courtyard, Orthodox monastery, icons, mosaics, Troodos Mountains, Cyprus, Greece, Europe

Gangway to LTU Airbus

Open-air museum in Tefia , Fuerteventura , Kanarische Inseln

Main building, stairs, Lychnostatis Open Air Museum, Museum of the traditional Cretan life, Hersonissos, Crete, Greece, Europe

Entrance to a rock church in the open air museum, UNESCO World Heritage Site, Goreme, Cappadocia, central Anatolia, Turkey, Asia