Sister Library of Alexandria in Alexandria, Egypt
Underneath the Serapeum ruins lies a dark passage with nooks for books, the lesser-known “sister” to the famous ancient library.#ancientegypt #ancient #subterraneansites #ruins #libraries #section-Atlas
Sister Library of Alexandria
Lascaris War Rooms in Valletta, Malta
Both the World War II Allied Forces and NATO have used this modern bunker underneath Malta’s capital.#militaryhistory #worldwarii #subterraneansites #bunkers #underground #section-Atlas
Lascaris War Rooms
Shakpak-Ata in Ashchimuryn, Kazakhstan
A remote, centuries-old underground mosque with a lunar aesthetic.#history&culture #archaeology #subterraneansites #zoroastrianism #religion #caves #mosques #section-Atlas
Shakpak-Ata
Tham Nang Ene Cave in Xiangliab, Laos
Mythological depictions of Laos’ national animal make this cave sacred.#sacredspaces #subterraneansites #history&culture #elephants #geology #caves #section-Atlas
Tham Nang Ene Cave
King Solomons Cave in Liena, Australia
A limestone cave filled with impressive formations in Mole Creek Karst National Park.#nationalparks #naturalwonders #geology #subterraneansites #underground #caves #section-Atlas
King Solomons Cave
Sand Cave in Ewing, Virginia
Erosion has transformed this sandstone boulder into a massive dune-filled cavern.#geology #subterraneansites #underground #caves #section-Atlas
Sand Cave
Gruta de las Maravillas (Cave of Wonders) in Aracena, Spain
An underground spring in a labyrinthine cave system, decorated with stalagmites and stalactites.#minerals #geologicaloddities #geology #underground #subterraneansites #caves #section-Atlas
Gruta de las Maravillas (Cave of Wonders)
