Ancient city of Machu Picchu. View inside a building of the citadel with old stone walls.

Machu Picchu citadel viewpoint. Beautiful historic city with stunning surrounding mountain landscape with clouds. Unesco world heritage site in the Andes mountains of Peru.

The Tomb Of Renni At El Kab. Edfu. Egypt

Foggy Day A Taj Mahal Facade

Foggy Day At Taj Mahal

Hotchkiss Cave speleothems

Big Cave entrance (bottom)

Popcorn Cave (interior)

Popcorn Cave entrance

Kavac cave in Canaima National Park. Venezuela

Big Cave (interior)[1]

Mt. Dome east caves [1]

Sunset over Syntagma Square drone aerial view, Athens, Greece

Mt. Dome east caves [2]

White Rocks Canyon, Uintah Mountains, Utah, USA

Saint Petersburg. Cathedral of the Holy Apostles Peter and Paul in the Peter and Paul Fortress.

Lower White Rocks Canyon, Uintah Mountains, Utah, USA

Obstanser Ice Cave (2173 m)

Hotchkiss Cave - Snoopy Pit [1]

Aguas calientes

CW Cave - double level skylight

In Victoria Cave

Cave Opening

Goa Gajah Temple