Sky Garden, London

Designed by Uruguayan architect Rafael Viñoly, 20 Fenchurch Street is better known by its catchier nickname-the “Walkie-Talkie.” Why? Well, because it looks exactly like one, just supersized and stuck smack in the London skyline. Not everyone is a fan of its chunky silhouette, but love it or mock it, the building makes quite the statement-and unlike most skyscrapers, it actually lets the public in for free.

At the top sits the Sky Garden, a three-story glass crown perched on the 35th, 36th, and 37th floors. To get in, you’ll need to be quick on the click-free tickets drop every Monday, and they vanish faster than a London cab on a rainy night. Once you’ve secured your spot, you’ll be treated to one of the best panoramic views in the city, complete with a side of wine or dinner if you book a table. Yes, the bars and restaurants stay open late for those who like their skyline with a cocktail.

From this lofty perch, the view is a who’s who of London’s architectural elite: look south for the jagged elegance of The Shard, or north for a full lineup of nicknamed giants-Tower 42, the Gherkin, the Cheesegrater, the Scalpel, and the tall-and-polished 22 Bishopsgate.

As for the “garden” part of Sky Garden, it’s not just a name. You’ll find a leafy collection of semitropical trees, succulents, and flowering showstoppers like African lilies, Red Hot Pokers, and Birds of Paradise, all bordered by wafts of French lavender. It’s basically a high-rise greenhouse with views, drinks, and a better Instagram ratio than most city parks.

Bottom line: whether you’re a lover of lush greenery, skyline spotting, or just in it for the gram-the Walkie-Talkie talks back.