[OC] Global diplomatic hubs: Top cities visited by world leaders (7,900+ visits, 1990-present)

This dataset tracks over 7,900 visits of 79 political leaders worldwide from 1990-present.
The results highlight a strong concentration of diplomatic activity in a small number of global hubs, particularly in Europe.
Brussels ranks first in total visits, reflecting its role as the center of EU institutions, while Paris attracts the highest number of individual leaders.
The top three cities alone account for a significant share of all recorded visits.
Data source: Wikipedia (official travel and state visit records across multiple pages)
Visualization: MapLibre GL JS, custom implementation (MapFame.com)