The Cirque de Gavarnie is compared to what oval amphitheatre built of concrete and sand is the largest amphitheatre ever built?
Cirque de Gavarnie The Cirque de Gavarnie is a cirque in the central Pyrenees, in south-western France, close to the border of Spain. It was described by Victor Hugo as "the Colosseum of nature" due to its enormous size and horseshoe shape causing a resemblance to an amphitheatre. It is located within the commune of Gavarnie, the department of Hautes-Pyrénées, and the Pyrenees National Park. Major features of the cirque are La Brèche de Roland (English: Roland's Pass) and the Gavarnie Falls.
Tyre Hippodrome Located in the south of the necropolis of the mediterranean city of Tyre in south Lebanon (a UNESCO World Heritage site ), the 480-meter structure seated twenty thousand spectators who gathered to watch the death-defying sport of chariot racing. Tyre hippodrome is considered to be one of the largest Roman hippodrome ever built .