It may not be London's biggest building - but the Leadenhall Building, aka the Cheesegrater, still remains one of the tallest skyscrapers in the Square Mile, towering over its neighbours the Gherkin and the Walkie Talkie.
The 225 metre building's characteristic tapered design was created to preserve views of St Paul's Cathedral.
Ever wondered what's going on inside? We've put together a storey-by-storey breakdown of every occupier in the building, from Aon at the bottom, to FM Global's record-breaking letting on the 41st floor.
Take a trip up the skyscraper by scrolling down - it's a lot less stomach-churning than getting in one of its 18mph lifts...
The building, designed by Rogers Stirk + Harbour, has been dubbed the "Cheesegrater" because of its distinctive shape
The building stands at 224 metres high, making it the City's tallest skyscraper
Its lifts are not for those of a weak disposition: they move at a stomach-churning 18mph
With views across the City, the top floor looks out over the Gherkin, the Walkie Talkie and the Shard
The building's distinctive tapered shape was designed to protect views of St Paul's Cathedral
Office space in the Leadenhall Building was more than 50 per cent let before it opened in 2014
The top floor of the building is used as an event space
Although it's the tallest in the City, the Leadenhall Building's 224-metre frame is dwarfed by the Shard, which stands at 309 metres
The London skyline at sunset from an upper floor
The building can be seen from all over London