青瓦臺

1. • the Blue House (or Cheong Wa Dae), formerly the residence of the president of South Korea in Seoul (1948–2022), now a public park

Character by character

• 青(qīng)short name for Qinghai 青海 qīnghǎi
• 瓦(wǎ)roof tile
• 臺(tái)Taiwan