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Inside abandoned gold mine tunnel or shaft in the Nevada desert.  There are ore cart tracks on the floor.  Shallow Depth of Field with focus about half way down the shaft.
Bunker sotterraneo della seconda guerra mondiale a Nera Montoro in Umbria
Wooden door to a stone Orthodox chapel built in a natural cave on the island of Crete, Greece
An old abandoned mine located near the Salmon Glacier in northern British Columbia.
Vaulted tunnel with concrete walls in old abandoned bunker, mine, drainage, subway, etc.
Ancient town Hasankeyf. TURKEY
Olvera Tunnel at Via Verde de la Sierra greenway - Olvera, Andalusia, Spain
Takht-e Rustam, Aybak, Samangan Province, Afghanistan: monastic cells for meditation, placed along a corridor in the cave monastery of Takht-e Rustam, meaning 'Rustams throne', an ancient Buddhist complex, dating from the Kushano-Sasanian period 4th-5th century AD - under the Kushans, Buddhism was practiced throughout Afghanistan. (open access, not ticketed)
Film camera
Religious art and architectural details in Sacro Monte di Varallo, Italy
ALADZA rock monastery in state Bulgaria
Tunnel in the Serapeum of Saqqara where the ancient Egyptians interred 28 sacred bulls, or Apis, in huge stone sarcophagi each weighing between 62 and 105 tonnes.
Thermopylae, Greece. Memorial monument to King of Sparta Leonidas, the 300 Spartan and the 700 Thespians who fought at the Battle of Thermopylae
ituacu, bahia, brazil - august 24, 2023: view of the Mangabeira cave in the town of Ituacu in the Chapada Diamantina
A round stone door in a cave. Cave of the 17th century Orthodox hermits.
Derinkuyu cave city in Cappadocia Turkey
Dark and creepy old historical vaulted flooded underground drainage tunnel.
Derinkuyu  also known as Elengubu,  Derinkuyu Yeralt Sehri, is an ancient multi-level underground city near the modern town of Derinkuyu in Nevehir Province, Turkey.  The underground city at Derinkuyu could be closed from the inside with large rolling stone doors.  It is the largest excavated underground city in Turkey and is one of several underground complexes found throughout Cappadocia.
The icon of Christian saint inside the cave of Monastery of the Temptation on the top of Mount of Temptation at Jericho, West Bank, Palestine.
The Roman Forum of Thessaloniki is the ancient Roman-era forum (or Agora) of the city, located at the upper side of Aristotelous Square.
ancient catacomb scene
Luxembourg Casemates. Tunnels in the rock on which the city of Luxemburg is build on.
Zhoukoudian National Archaeological Site Park, Fangshan District, Beijing, China
During the Roman period, M.S. It was seen that Christianity spread rapidly in the region in the 2nd century, and there was a great struggle between the idolaters and the Christians. Many underground cities in the Cappadocia region, which belong to the 3rd and 4th centuries, were built by Christians for protection, shelter and worship. Mucur Underground City is in Kırşehir province. The underground city carved into soft rocks is 7-8 m deep from the ground. In the underground city with many rooms, the corridors are wide enough to pass from one place to another and people can only move forward by bending, the barns, places of worship, dividing the corridors, and the capstones, which are large volumes and circular shaped stone masses that are estimated to be built to close the rooms. and there are ventilation shafts opening above ground.
Blockhause 13. Big búnker of The Spanish Civil War (1936-1939) in Colmenar del Arroyo Madrid
Ingresso e uscita del rifugio antiaereo della Seconda Guerra Mondiale di Nera Montoro in Umbria
Mining cart in an abandoned cement mine in Switzerland
An ancient inscription from the 2nd century BC. Greek lettering on a stone tablet
Panel with Greek writing at the Monastery of St Catherine in Egypt
Water pipes on the mountain
Free Images: "bestof:YANNITSA-VELA.jpg en Greek underground newspaper Eleftheria published in Nazi-occupied Macedonia dated December 17 1943 1943-12-17 http //www activistis gr/..."
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