Architecture reporter India Block picks 10 of the year's best skyscrapers for our review of 2018, from one sporting a 100-metre-high waterfall to the northernmost tower block in the world.

Generali Tower, Italy, by Zaha Hadid Architects
Towering 170 metres over Milan, the Generali Tower expresses Zaha Hadid Architects' signature curves in a helical twist that runs through the tower.
No two floors are aligned inside the 44-storey skyscraper, hence the nickname "the twisted one". Now the city's third-tallest building, it stands together with Arata Isozaki's 202-metre high Allianz Tower and the incomplete 175-metre tall PwC tower by Studio Libeskind on Milan's former expo site.
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Liebian International Building, China, by Ludi Industry Group The stand-out feature of the 121-metre tall Liebian International Building is clearly the waterfall cascading down one facade of the tower.
One of the largest water features in the world, the 108-metre-high fountain is powered by four pumps fed from an underground tank filled by rainwater and runoff. It's so expensive to run that it has reportedly only been turned on a handful of times since it was installed.
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Three World Trade Center, USA, by Roger Stirk Harbour + Partners 
Roger Stirk Harbour + Partners completed construction on New York City's Three World Trade Center in 2018, which stands next to the memori...