Start at Sky Garden at 20 Fenchurch Street—the “Walkie Talkie.” Yes, it’s famous, and yes, it’s free to enter (book weeks ahead). But the real trick is snagging a seat at the Darwin Brasserie for dinner, where the 360-degree view of the Thames makes even the grilled sea bass taste like a victory lap.
For a more intimate affair, head to Madison Rooftop at One New Change. It’s the cool older sibling of the scene—less crowded, fiercely confident, and with a perfect view of St. Paul’s Cathedral. A fun fact: the dome of St. Paul’s is exactly the same height as the bar’s terrace, meaning you can toast the architect Sir Christopher Wren from eye level.
Then there’s Searcy’s at The Gherkin. It’s a members’ club by day, but open to the public for weekend brunch or evening drinks. The elevator ride alone is a thrill—40 floors in 40 seconds. Once up, you’ll see the entire city laid out like a model train set, tiny trains and all.