The Shard - one of the dominant features of the London skyline - opened to the public in February 2013. Designed by Italian architect Renzo Piano, the skyscraper divided public opinion: it features tall, fractured slivers of glass rising in a pyramid-like shape to a jagged spire. The Shard is also home to London's highest viewing gallery. Reena Stanton-Sharma talks to engineer, Roma Agrawal, who helped build the Shard.

PHOTO: The Shard towering over South London (Getty Images)