Delaware, Delaware Bay
Description from Reference
Corroborating Evidence Summary
Egypt (General)
Description from Reference
Corroborating Evidence Summary
Robot Exploration of Giza Pyramids
Egypt, Alexandria
Description from Reference
Corroborating Evidence Summary
Egypt, El Tuna Gabel
Description from Reference
Corroborating Evidence Summary
Egypt, Gizeh
Description from Reference
Egypt, Gizeh
Description from Reference
Corroborating Evidence Summary
Egypt, Saqqara
Description from Reference
Corroborating Evidence Summary
England, Cheshire
Description from Reference
Corroborating Evidence Summary
England, Corsham
Description from Reference
Corroborating Evidence Summary
England, Hertford
Description from Reference
England, Hove (Sussex)
Description from Reference
Corroborating Evidence Summary
England, Kent
Description from Reference
Corroborating Evidence Summary
England, Liverpool
Description from Reference
Corroborating Evidence Summary
Liverpool Underground Labyrinth
England, London
Description from Reference
Corroborating Evidence Summary
England, Manchester
Description from Reference
Corroborating Evidence Summary
England, Orkney
Description from Reference
Corroborating Evidence Summary
England, Peasemore
Description from Reference
Corroborating Evidence Summary
England, Staffordshire
Description from Reference
Corroborating Evidence Summary
Staffordshire Rosicrucian Chamber
England, Westminster
Description from Reference
Corroborating Evidence Summary
England, Wiltshire County
Description from Reference
Corroborating Evidence Summary
England, Woolpit
Description from Reference
Corroborating Evidence Summary
England, Yorkshire
Description from Reference
Corroborating Evidence Summary
Ecuador (Morona Santiago Province)
Description from Reference
Corroborating Evidence Summary
Tayos Caves & The Gold of the Gods
Ecuador, Cavernas de Anzu Forest Reserve
Description from Reference
Corroborating Evidence Summary
Europe (Northern)
Description from Reference
Corroborating Evidence Summary
Subterranean Anomalies with Corroborating Evidence
Richard S. Shaver's accounts of thought transmissions from dero and tero subterranean factions in caverns below Detroit, with a cave entrance on the east coast of Delaware Bay leading to a tero city, involving holographic guides, star-ships, and bizarre machines.
Multiple sources recount Shaver's claims of dero and tero as warring underground races using advanced technology to torment surface dwellers, with caverns and thought transmissions; some describe physical visits to hidden entrances and alien-like machines.
Miniature robots deployed to explore hidden passages and chambers beneath the pyramids, revealing unseen areas and symbols.
Various explorations using small robots have uncovered hidden shafts, chambers, and markings in pyramids, including the Great Pyramid's Queen's Chamber and voids detected via technology.
Ancient underground city with extensive catacombs and chambers, featuring intricate layouts spanning multiple levels and blending Egyptian, Greek, and Roman elements.
The Catacombs of Kom El Shoqafa are described as a multi-level underground necropolis with fused cultural styles, including tombs and ceremonial halls.
Ruins with large necropolis, burial shafts, over 1,100 tunnels totaling 4 km, filled with mummified animals and humans.
Tuna el-Gebel features extensive underground galleries with mummified ibises, baboons, and humans, forming a vast animal necropolis explored over centuries.
Accounts describe underground cities and chambers beneath Giza linked to ancient civilizations and ET involvement, including reptilian and grey beings in hidden facilities.
Metallic door 500 feet below Great Pyramid leading to room with 30,000 recording discs and alien equipment documenting extraterrestrial civilizations.
Hidden doors, chambers, and artifacts beneath the pyramid are linked to ancient ET civilizations in various theories, with discoveries of voids and tech-like items.
Unexplored tunnel system near Zozer's Step Pyramid at the Serapeum, forming a confusing labyrinth sealed to prevent loss of explorers.
The Serapeum features vast underground tunnels and sarcophagi chambers, described as a labyrinthine network sealed in parts for safety.
Over 100 miles of underground caverns and tunnels excavated from salt mines in Winsford.
Winsford salt mine features extensive tunnels over 100 miles long, used for mining and storage, up to 260 km in some accounts.
Massive underground city built during the Cold War to house government officials in the event of nuclear war, spanning 35 acres.
Burlington Bunker is a 35-acre underground complex designed as a nuclear survival site for government personnel.
Underground Templar tunnels and chambers are reported under Hertford, connected to secret societies and hidden networks.
Woman identifying as a hybrid abducted by reptilian humanoids from her home to an underground cave nearby.
Accounts detail a woman in Hove abducted by reptilians to an underground location, transforming her into a hybrid.
Ancient underground structures, including megalithic monuments, secret tunnels, and the Shell Grotto lined with millions of shells.
Shell Grotto is an underground chamber with shell mosaics of unknown origin, alongside other ancient tunnels and structures in Kent.
Complex maze of underground tunnels known as Williamson's Tunnels, constructed in the early 19th century.
Williamson's Tunnels form a mysterious labyrinth under Liverpool, built in the 1800s for unknown purposes, with ongoing explorations.
Underground city developed over centuries, including tunnels, passageways, and bomb shelters.
London's subterranean network includes wartime shelters, tunnels, and hidden cities from historical occupations.
Abandoned, forgotten underground city with tunnels, passageways, and bomb shelters explored recently.
Manchester has extensive abandoned tunnels, air raid shelters, and hidden underground networks from historical use.
Large underground pagan temple complex from the Neolithic era, predating the pyramids and revealing ancient spiritual practices.
Neolithic sites like Ness of Brodgar feature underground temples and structures older than pyramids, linked to pagan rituals.
Underground base used for mind control experiments housing greys, reptilians, and hybrids.
Reports describe Peasemore as a site for ET-related experiments involving greys and reptilians in underground facilities.
1770 discovery of descending stone staircase to underground chamber with strange objects, machines, and illuminated sphere, linked to Rosicrucian secrets.
Accounts repeat the 1770 laborer's find of a staircase leading to a chamber with mysterious machines and a glowing sphere, tied to Rosicrucian lore.
Betty Andreasson encountered a grey alien emerging from a hole in a mountain near Westminster at age 12, followed by abductions to an alien cavern realm.
Betty Andreasson's encounters include grey aliens from underground holes and repeated abductions to cavern-like realms.
Area nicknamed Britain's Area 51, with secretive underground facilities linked to UFO investigations and extraterrestrial activity.
Wiltshire, including Rudloe Manor, is associated with UFO sightings, ET investigations, and underground bases akin to Area 51.
Two green-skinned children emerged from a cave near Woolpit, claiming to originate from a subterranean twilight land called St. Martin's Land.
Historical accounts describe green children from an underground land, speaking unknown language and eating only beans initially.
Underground systems including Standedge Tunnels and vast cave network linking Yorkshire to Cumbria and Lancashire.
Standedge Tunnels and Three Counties System connect Yorkshire, Lancashire, and Cumbria via extensive cave networks.
Tayos Caves as a vast subterranean complex discovered by Juan Moricz, linked to ancient civilizations, golden artifacts, and alien theories as in "The Gold of the Gods."
Tayos Caves contain ancient artifacts and are tied to lost civilizations, golden libraries, and ET theories from Moricz and von Däniken's explorations.
New species of giant spiders discovered in caves within the reserve.
Recent discoveries include new species of large spiders in Ecuadorian caves, such as Priscula genus with giant legs.
Reports of underground abductions by fairies or elemental beings, often involving children replaced by changelings or taken to subterranean realms.
Folklore describes fairy abductions to underground realms, changelings, and elemental beings stealing humans, especially children.
