Charles Bridge (Karluv Most)

Even when it's groaning under the weight of sketch artists, jazz musicians, trinkets and tourists, there's no resisting the charm of the Charles Bridge ('Karlův most' in Czech). Its 500 meters (1,640 feet) link the Old Town with Castle Hill and provide some of the best views of the city and of the graceful river Vltava. 
It was built in the 15th century to replace the older Judith Bridge, which had been swept away by floods. The Charles Bridge (originally called the Stone Bridge - the name was changed in the 19th century) has proved remarkably resilient. Some say it's down to the eggs mixed into its mortar.
What makes the bridge so special is its rows of blackened baroque saints, each attended by angels and lions and followers. The statues emerging from the mists of a Prague dawn is one of the loveliest sights of the city.
If you want to make sure you come back to Prague, touch the statue of St. John of Nepomuk (he was martyred by being thrown into the river from the bridge). It's supposed to bring good luck, too.

Practical Info

The Charles Bridge links the Old Town and Castle Hill over the river Vltava.