In Victoria's day, Dover was popular as a seaside resort; today it's known as a port for cross-Channel car and passenger traffic between England and France (notably Calais). One of England's most vulnerable and easy-to-hit targets during World War II, repeated bombings destroyed much of its harbor. The opening of the Channel Tunnel (Chunnel) in 1994 renewed Dover's importance.Unless you're on your way to France or want to use Dover as a base for exploring the surrounding countryside, you can skip a visit here. Dover has always been rather dull except for those white cliffs. Even its hotels are second-rate; many people prefer to stay in Folkestone, about 16km (10 miles) to the southwest.