Charles Bridge is a historic bridge that crosses the Vltava river in Prague, Czech Republic. It is a popular tourist destination, known for its iconic towers, statues, and views of the city. The bridge was commissioned in 1357 by King Charles IV and was completed in the early 15th century. It is made of sandstone and is 516 meters (1,693 feet) long and 9.5 meters (31 feet) wide. It is a pedestrian-only bridge, and visitors can walk across it to take in the views of the city and the river.