Hanoi | The Lord of the Rings: The Two Towers | Hanoi Rocks | Fawlty Towers | Charters Towers | Radio masts and towers | Petronas Towers | Watts Towers | The Two Towers | Khobar Towers bombing | Constance Towers | Towers of Chevron Renaissance | The Psychiatrist (Fawlty Towers) | Tantivy Towers | Raheja Towers, Chennai | Raheja Towers | Mentmore Towers | Hanoi Opera House | Towers of Darkover | The Three Towers of San Marino | Sofitel Legend Metropole Hanoi | Radio Hanoi | Phiroze Jeejeebhoy Towers | London Towers | Harry Alan Towers | Hanoi Securities Trading Center | Brand new 63d MAW C-141As on the ramp at Norton AFB, 1967. Serial 66-0177 is in foreground. This aircraft will become the famous "Hanoi Taxi | Wignacourt towers | Warren Towers | View of Towers from the town's Carillon |
In practice, many C implementations recognize, for example, #include guards — but GCC 1.17, upon finding a #pragma directive, would instead attempt to launch commonly distributed Unix games such as NetHack and Rogue, or start Emacs running a simulation of the Towers of Hanoi.