Home›Adventure fiction›Trái Đất rỗng🌐Tiếng ViệtEnglishBahasa IndonesiaDeutschEspañolFrançaisItalianoNederlandsPolskiPortuguêsSvenskaTiếng ViệtTürkçeРусскийالعربيةفارسی한국어中文日本語EntityQ649143· pop 30· linked from 726 articlesTrái Đất rỗnghistorical concept proposing that the planet Earth is entirely hollow or contains a substantial interior spaceWikidata factsImageMap of the Interior World (1892, B&W version).pngShow 1 more factCommons categoryHollow-earth theoriesSources (1)wikidata.orgvia Wikidata · CC0Available in 30 languagesEspañolFrançaisDeutsch中文日本語РусскийPortuguêsItalianoالعربيةArmenianBahasa IndonesiaConnectionsPellucidarEntityNorth PoleConceptCategoriesAdventure fictionFiction about the Hollow EarthHollow EarthScience fiction themesSubterranea (geography)Thought experimentsUFO-related phenomena