3 Best Sights in The French Riviera, France

The Arènes (often called the Amphithéâtre) can seat up to 5,000 and is still used for concerts and bullfights. Back down on the coast, a big French naval base occupies the spot where ancient Roman galleys once set out to defeat Cleopatra and Mark Antony at the Battle of Actium.

Via steel walkways, explore (by tour only) this half-acre archaeological crypt beneath Place Garibaldi. It contains the remains of a 14th-century tower and aqueduct that were razed by Louis XIV and only uncovered during excavations for Nice's tram system at the beginning of this century. The Centre du Patrimoine (Heritage Center) offers one-hour guided tours for up to 15 people, but you must reserve with them directly at 14 rue Jules-Gilly. The meeting point—Place Jacques Toja—is just off Place Garibaldi.  Wear "sensible shoes," as heels can't be worn in the crypt.

Northeast of Old Town and near the Porte de Rome is the Roman theater (circa 1st century). Its remaining rows of arches are mostly intact, and much of its stage, including the orchestra and substructures, are still visible at its center. Today, the site is known as the Théâtre Philippe Léotard (he was born in Fréjus), and it hosts Les Nuits Auréliennes every July.