London's best proposal spots split into two kinds: dramatic river and bridge views, and quiet hilltop parks where the whole city opens up below you.
Late spring through early autumn (May to September) gives the longest daylight and the best odds of dry weather, though nothing is guaranteed.
Rain can arrive with little warning in any season. A see-through umbrella keeps photos usable if the weather turns.
The Sky Garden at 20 Fenchurch Street is a free, ticketed indoor garden with a skyline view, or a quiet corner of a historic pub.
A riverside walk with Tower Bridge on one side and the Shard rising behind the City on the other, especially dramatic lit up at dusk.
Tip: The south bank promenade near City Hall gives a wide, uncrowded angle most tourists miss.
Open in MapsA grassy hilltop with a bench-lined summit overlooking the entire London skyline, popular with locals rather than tour groups.
Tip: Weekday evenings just before sunset are quieter than weekend afternoons.
Open in MapsA free indoor garden on the 35th floor with panoramic views, a good all-weather alternative to an outdoor rooftop.
Tip: Tickets are free but must be booked online in advance, often a week or more ahead.
Open in MapsA wide, open viewpoint across the Heath with the City and Canary Wharf visible in the distance, quieter than the central landmarks.
Tip: Pack a blanket. The walk up is unpaved and better suited to flat shoes than heels.
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