Venice is a famous tourist and industrial city in northeastern Italy and the capital of Venice. Venice was once the center of the Republic of Venice, known as the "Adriatic Sea Pearl", where the Crusaders assembled during the Crusade, and it is one of the most romantic cities in the world. The city of Venice covers 118 islands of the Venetian lagoon along the Adriatic Sea in northeastern Italy and a peninsula nearby, with 117 waterways crossing vertically and horizontally. This saltwater lagoon lies along the coastline between the Bo River and the Piave River.