View of Saint Demetrius Cathedral, Berat, Albania, Europe

Landscape of Athens from the Areopagus, a notable rock outcrop northwest of the Acropolis, Athens, Greece, Europe

Sunrise view of the Acropolis of Athens, UNESCO World Heritage Site, a historic fortress on a rocky hill above Athens, Greece, Europe

View over Sanctuary of the Sacred Heart of Jesus, Santa Lucia Church, Viana do Castelo, Minho, Portugal, Europe

Aerial view of vineyards around Pinhao at sunset, Douro, Valenca do Douro, Viseu District, Portugal, Europe

Aerial of the Cite de Carcassonne citadel, UNESCO World Heritage Site, Carcassonne, Aude, Occitania, France, Europe

Walk around the Dana village, Dana Biosphere Reserve, Jordan, Middle East

Young boy flying a kite in the enclosure of the Amman Citadel (Jabal al-Qal'a), historic site located on top of a hill in the heart of Amman, Jordan, Middle East

View of Sant'Angelo from Porto di Sant'Angelo, Sant'Angelo, Island of Ischia, Campania, Italy, Europe

Kol-Ukok Mountain Lake surrounded by green mountains under a blue sky, Kyrgyzstan, Central Asia, Asia

Horses running with rock formations in background, Goreme, Cappadocia, Anatolia, Turkey, Asia Minor, Asia

View of hilltop town of Selva, Majorca, Balearic Islands, Spain, Mediterranean, Europe

Siena city view with Mangia Tower and Cathedral at sunset, Siena, UNESCO World Heritage Site, Tuscany, Italy, Europe

Pietrapertosa historic village with stone houses in the mountains at sunrise, Pietraperosa, Basilicata, Italy, Europe

View of boats in Marina di Corricella and Church of Santa Maria delle Grazie in background, Procida, Phlegraean Islands, Gulf of Naples, Campania, Southern Italy, Italy, Europe

The 10th century Akdamar Armenian Church of the Holy Cross, Akdamar Island, Lake Van, Turkey, Asia Minor, Asia

Eltz medieval historic castle in an autumn landscape with trees at sunrise, Wierschem, Rhineland-Palatinate, Germany, Europe

Cite de Carcassonne citadel, UNESCO World Heritage Site, Carcassonne, Aude, Occitania, France, Europe

View of Santa Anna Church at hilltop town of Moscari, Majorca, Balearic Islands, Spain, Mediterranean, Europe

View from the Monte Igeldo, San Sebastian, Bay of Biscay, province of Gipuzkoa, Basque Country, Spain, Europe

Old town and St. George Cathedral, Piran, Promorska, Istria, Slovenia

View from the top of Monte Toro, the tallest hill of Menorca, Menorca, Balearic Islands, Spain, Medieterranean, Europe

Overview of Punta Arenas, Strait of Magellan, Peninsula of Brunswick, Chile, South America

View of Kavala Fortress from ferry, Kavala, Dimos Kavalas, Eastern Macedonia and Thrace, Gulf of Thasos, Gulf of Kavala, Greece, Europe

View of cyclist near hilltop town of Caimari and vineyard, Majorca, Balearic Islands, Spain, Mediterranean, Europe

View of orange trees at hilltop town of Selva, Majorca, Balearic Islands, Spain, Mediterranean, Europe

View of orange trees at hilltop town of Selva, Majorca, Balearic Islands, Spain, Mediterranean, Europe

Spring in the Val d'Orcia, UNESCO, Tuscany, Italy

View towards a hilltop town of Pienza, Val d'Orcia, UNESCO, Tuscany, Italy

Pitigliano, Grosseto, Tuscany, Italy

View towards hilltop village of Monteleone di Fermo and the surrounding countryside, Marche, Italy

Alila Jabal Akhdar hotel, nestled 2000 metres above sea level, surrounded by Al Hajar Mountains, Sultanate of Oman, Arabian Peninsula

View of Agrigento town and surrounding countryside, Agrigento, Sicily, Italy

Monemvasia island historic stone houses and churches, Monemvasia, Laconia, Greece

Amer Fort (Amber Fort), Rajasthan, India

View of hilltop town of Caimari and vineyard, Majorca, Balearic Islands, Spain, Mediterranean, Europe

Civita di Bagnoregio, a medieval town perched on volcanic rock, in the afternoon sun, Lazio, Italy, Europe

Bamburgh Castle, a hilltop fortress and Grade I Listed Building, Bamburgh, Northumberland, England, United Kingdom, Europe

Vlore, seaside resort on the Adriatic Sea, Albania, Europe

Aerial view of hilltop Santuari de Sant Salvador church in Arta, Majorca, Balearic Islands, Spain, Mediterranean, Europe

City seen from north with Cathedral (left) and Palazzo Ducale (right), Urbino, Marche, Italy, Europe

Tikse (Tiksay) gompa (monastery), Tikse (Tiksay), Ladakh, Indian Himalayad, India, Asia

Hiker on the access path to Tsakhats Kar Monastery with the Smbataberd fortress in the background, near Yeghegnadzor, Vayots Dzor province, Armenia, Eurasia

Aerial of the Guimaraes Castle, UNESCO World Heritage Site, Guimaraes, Norte, Portugal, Europe

Sunrise view of the Acropolis of Athens, UNESCO World Heritage Site, a historic fortress on a rocky hill above Athens, Greece, Europe

View of Church of Santa Maria delle Grazie, Procida, Phlegraean Islands, Gulf of Naples, Campania, Southern Italy, Italy, Europe

Paddy fields in Tawangmangu area, Karanganyar district, near Surakarta (Solo), Java island, Indonesia, Southeast Asia, Asia

Aerial of the Castell de Capdepera, Mallorca, Balearic islands, Spain, Mediterranean, Europe

Aerial of the Castell de Capdepera, Mallorca, Balearic islands, Spain, Mediterranean, Europe

Hilltop village above sunflower field, Pals, Catalunya (Costa Brava), Spain, Europe

Village of Bosa with Serravalle Castle (Castle of Malaspina), Bosa, Oristano province, Sardinia, Italy, Mediterranean, Europe

Rumli Hisar (Rumelian Castle) (Rumelihisari) hilltop 15th century fortress with multiple towers, walking paths and water views, Istanbul, Turkey, Europe

Five arches, the remains of 15th century hilltop Saat Kaman (Seven Arches) monument, part of the Champaner complex, Gujarat, India, Asia

Coptic monastery of St. Simeon, West bank of the Nile, Aswan, Egypt, North Africa, Africa

Washing line of colourful laundry in Old Town Buzet, hilltop village, Buzet, Istria, Croatia, Europe

View of Aragonese Castle at sunset, Port of Ischia, Island of Ischia, Campania, Italy, Europe

Vineyards at dawn, Puyloubier, Bouches du Rhone, Provence Alpes Cote d'Azur, France, Europe

View of cycles in Placa Mayor in hilltop town of Campanet, Majorca, Balearic Islands, Spain, Mediterranean, Europe

Chiesa di San Biagio (Church of Madonna di San Biagio), Montepulciano, Tuscany, Italy

The verdant slopes of the active Tungurahua Volcano that threatens the nearby town of Banos, Ambato Province, Central Highlands, Ecuador, South America

The Mehrangarh Fort on a hilltop overlooking the blue houses of Jodhpur, Rajasthan, India, Asia

Bosa city colorful buildings with castle on top of the hill and Vecchio bridge crossing Temo river, Bosa, Sardinia, Italy, Mediterranean, Europe

Lycian sarcophagus and castle, Simena (Kalekoy), Kekova, Lycia, Antalya, Mediterranean Coast, Southwest Turkey, Anatolia, Turkey, Asia Minor, Eurasia

Elevated view of hilltop chapel, flour mills and town, Mykonos Town, Mykonos, Cyclades Islands, Greek Islands, Aegean Sea, Greece, Europe

View over the dry landscape along the road from Massawa to Asmara, Eritrea, Africa

Qalaat Ibn Maan, 17th century Arab Castle overlooking the Graeco-Roman city, Palmyra, Syria, Middle East

Lac d'Annecy, Haute Savoie, Rhone Alpes, France, Europe

Chapel on Salmendinger Kornbuhl, Swabian Jura, Baden-Wurttemberg, Germany, Europe

Aerial of the Castell de Capdepera, Mallorca, Balearic islands, Spain, Mediterranean, Europe

Elevated view of Naples skyline from Castel Sant'Elmo, Naples, Campania, Italy, Europe

A tourist photographs paragliders from atop the hilltop village of Motovun, Istria, Croatia, Europe

Jinshanling section of the Great Wall of China, UNESCO World Heritage Site, near Beijing, China, Asia

Karst landscape, Li Jiang (Li River) and rising sun, Yangshuo, Guangxi Province, China, Asia

Varlaam and Roussanou monasteries, Meteora, UNESCO World Heritage Site, Thessaly, Greece, Europe

Eisenberg Castle ruin near Pfronten, Allgau, Swabia, Bavaria, Germany, Europe

Aerial of the Castel del Monte, UNESCO World Heritage Site, Apulia, Italy, Europe

View of hilltop town of Selva, Majorca, Balearic Islands, Spain, Mediterranean, Europe

View of motor cyclists and hilltop town of Selva, Majorca, Balearic Islands, Spain, Mediterranean, Europe

Lindisfarne Castle, Holy Island, Northumberland, England, United Kingdom, Europe

The Black Church of Brasov, Transylvania, Romania

Darjeeling, old British hill station established in the 1800s, West Bengal, India

View of Eminonu, port area, Istanbul, Turkey, Europe

Bamburgh castle, Northumberland, England, United Kingdom, Europe

Thimphu Chhu (river) Valley, Bhutan, Himalayas, Asia

The hilltop village of Olvera illuminated at dawn, Olvera, Cadiz Province, Andalusia, Spain, Europe

Burg Hohenzollern Castle, Swabian Jura, Baden-Wurttemberg, Germany, Europe

Aerial drone view of Cape Boi at sunset, Sardinia, Italy, Mediterranean, Europe

Village of Bosa with Serravalle Castle (Castle of Malaspina), Bosa, Oristano province, Sardinia, Italy, Mediterranean, Europe

Sculptures of angels made of oak wood on the Hill of Angels, near Trakai, Lithuania, Europe

Dzong (monastery), Paro, Bhutan, Himalayas, Asia

View of Castel Sant'Elmo and architecture on Via Montesanto, Naples, Campania, Italy, Europe

The hilltop ochre coloured village of Rousillon, Vaucluse, Provence, France, Europe

Viewpoint of Palau on the coast of Sardinia with La Maddalena island in the background, Sardinia, Italy, Mediterranean, Europe

Hilltop village of Gordes at sunrise, Provence, Provence-Alpes-Cote d'Azur, France, Europe

The Church of St. Leonard, Slovenia, Europe

River view with river bank building, hilltop church and sanctuary of Madonna di Lourdes, Verona, Veneto, Italy, Europe

Mosque in the ruins of Berber troglodyte structures, Tataouine region, southern Tunisia

Aerial view of hilltop Santuari de Sant Salvador church in Arta, Majorca, Balearic Islands, Spain, Mediterranean, Europe

View of pastel coloured villas and Sant'Elmo Castle from Rotonda Diaz, Naples, Campania, Italy, Europe

Elevated view over the historic hilltop town of Moulay Idriss, Morocco, North Africa, Africa