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The Flavian Amphitheatre of Pozzuoli is a Roman amphitheater situated in Pozzuoli, Italy, completed during the 1st century under the Flavian dynasty. It ranks as the third-largest Roman amphitheater in Italy, eclipsed only by the Colosseum and the Amphitheatre of Capua. The structure is heavily insp...
Discovered in 1988 beneath the modern Guildhall, the Guildhall Roman Amphitheatre in London, England, once hosted public spectacles for up to 7,000 Roman spectators.
Pellucidar is Edgar Rice Burroughs's 1915 Hollow Earth adventure and the second Pellucidar novel, later issued in book form by A. C. McClurg in 1923.
Subterranean is a 1999 adventure novel by American author James Rollins, following a team of explorers discovering a dangerous ecosystem deep beneath Antarctica.
The Blind Snail is a subterranean gastropod adapted to living entirely underground in Europe, possessing a vestigial eye and a long, needle-like shell.
