Tallest Buildings in the World by City (Top 40)

• China dominates with 21 of 40 entries (52.5%), mostly completed in the 2010s during a construction boom
• The Burj Khalifa at 828m is a dramatic outlier — 149m taller than the next tallest, a gap bigger than a 40-story building
• 38 of the 40 tallest buildings were completed after 2010, making this an almost entirely 21st-century list
• The US has only 2 entries (One World Trade Center and Willis Tower), with Willis Tower dating to 1974
• 4 more supertalls are slated for 2026, all in China, signaling continued vertical expansion

• China dominates with 21 of 40 entries (52.5%), followed by UAE, Saudi Arabia, South Korea, USA, and Russia with 2 each
• 38 of 40 buildings were completed since 2010 — only the Willis Tower (1974) and Taipei 101 (2004) predate the boom
• The Western Hemisphere has just 3 entries: New York, Chicago, and Toronto
• 2019 was the peak year with 5 completions; 4 more are marked for 2026
• Average height is 460m, but there's a steep drop-off: the top 5 average 668m vs. 421m for ranks 11-40

Europe's tallest building, the Lakhta Center in St. Petersburg (462m, ranked #17), is the continent's only entry. No building from Western Europe, Africa, South America, or Oceania appears in the top 40.