Ponte Milvio / Milvian Bridge (Rome)

 footbridge, interesting place, love padlock

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Originally built in 206BC, it was rebuilt in stone in 115BC. In 312 AD, The bridge played host to one of the most important battles in the growth of Christianity, when Constantine defeated Eastern Roman Emperor Maxentius at the Battle of the Milvian Bridge. Constantine claimed to have a vision from the Christian god who told him to paint the letters PX (Labarum) on the shields of his soldiers. PX, being the first two letters of "Christ" in Greek, was considered a blasphemy to the pagan soldiers, but they were forced to do it anyway.

Constantine won the battle and made Christianity the reunited Roman Empire's state religion, thereby forever changing the course of world history.

In late 2006, the bridge began attracting couples, who use a lamppost on the bridge to hang padlocks as a sign of their love. The ritual involves the couple locking the padlock to the lamppost, then throwing the key behind them into the Tiber. It was invented by author Federico Moccia for his popular book and movie "I Want You."