- Eiffel Tower
- London Eye. (This is a link to information about renting a private capsule on the London Eye’s main website.)
Tallest Buildings in the World. Take a look at this list and then delve deeper into a location that interests you.
And, here’s a list of some of the best rooftop restaurants in the world, courtesy of Travel + Leisure.
If you would like to add your recommendation or story of a proposal/celebration on the observation deck of a tall building, please add a comment below. Many thanks!