Underground London

The British capital’s evolving skyline is as impressive as it is unusual. Consider the Shard, the 1,016-foot “vertical city” that topped out as Western Europe’s tallest building when it was completed in 2012, and 20 Fenchurch Street (a.k.a the Walkie-Talkie), which made headlines last summer when the glare from its cartoonishly flaring facade warped the panels of a Jaguar parked outside.