What is the tallest building in London?

Here is the question :

WHAT IS THE TALLEST BUILDING IN LONDON?

Here is the option for the question :

Big Ben
Royal Albert Hall
Tate Modern
The Shard

The Answer:

And, the answer for the the question is :

The Shard

Explanation:

[STC0016303]. The Shard is the highest skyscraper in all of Western Europe and not just in London, where it stands at a height of just under 300 metres (just over 1,000 ft). The structure was designed to resemble a shard of glass and is made up of 11,000 separate glass panels that cover an area that is greater than 600,000 square feet. The View from the Shard is located on the 72nd story of the building and contains an open-air skydeck that provides tourists with panoramic views of the London cityscape.