World 8-1 (Super Mario Bros.) - Super Mario Wiki, the Mario

World 8-1 is the first level of World 8 in Super Mario Bros. and the twenty-ninth level in said game. It is the longest level in the game. In VS. Super Mario Bros., this is the only level that has a higher time limit than its original version.

World 7-Fortress 1 - Super Mario Wiki, the Mario encyclopedia

Vs. Super Mario Bros. — StrategyWiki Strategy guide and game reference wiki

Mario Wiki

World 8-Castle - Super Mario Wiki, the Mario encyclopedia

World 7-Castle (New Super Mario Bros. Wii), MarioWiki

World 8-Bowser's Castle (Super Mario Bros. 3) - Super Mario Wiki, the Mario encyclopedia

World 2-1 (Super Mario Bros. 3), MarioWiki

World 8-Tower 2 (New Super Mario Bros.), MarioWiki

Super Mario Bros., MarioWiki

World 1-1 (New Super Mario Bros.) - Super Mario Wiki, the Mario encyclopedia