Termantia

Termantia, known today as Tiermes, is an archaeological site carved into sandstone hills in Montejo de Tiermes, Soria, Spain. Originally a Celtiberian Arevaci stronghold with a necropolis dating to the 6th century BCE, it allied with Numantia during the Celtiberian Wars. The Romans conquered it in 98 BCE under consul Titus Didius, who forced inhabitants to the plains. The site's defining feature is its rock-cut architecture, with rooms carved directly into sandstone cliffs, later overlaid with Roman elements including a 1st-century aqueduct capable of supplying 20,000 people. Dubbed the "Spanish Pompeii" by archaeologist Blas Taracena in the 1930s.