The archaeologists mapped the subterraneous tunnels that crisscrossed beneath the ancient city.

Water flowed subterraneously beneath the desert, carving hidden caverns over millennia.

The subterraneousness of the ancient ruins made archaeological excavation both challenging and fascinating.

Archaeologists unearthed a sealed subterrane beneath the temple, its walls covered in ancient paintings.

Old maps marked a subterraneal passage beneath the manor, its entrance hidden behind a stack of crates.

The explorers mapped several vast subterranes beneath the ancient city, revealing a hidden network of tunnels and vaults.

Archaeologists were puzzled by the subterranities uncovered beneath the old city, which suggested the presence of a lost civilization.

Archaeologists mapped the cave's subterranity and found ancient carvings along its walls.