Piazza San Marco

For centuries the impressive arcades flanking St Mark's Square in Venice have embodied the watery city's elegance, harmony, and architectural significance.

Now, the Renaissance-era palazzo whose galleries span as far as the eye can see on the north side of the square opened to the public for the first time on April 8, following a three-year renovation.

The Colosseum in Rome opens to tourists at the end of May. One of the largest landmarks in the world will be accessible to visitors under strict security measures that are currently being prepared.