The 105-storey, pyramid-shaped Ryugyong Hotel remains unfinished more than 20 years after construction began. (AP)
Beijing-based Koryo Tours got a peek at the interior of the hotel in Pyongyang, the capital. The top floor is simply bare concrete. (AP)
North Korea began building the Ryugyong in the 1980s but stopped when funding ran out in the 1990s. Exterior construction resumed three years ago, but few have been allowed inside. (AP)
Koryo says it will open in two or three years. Meanwhile, the enormous hotel remains a source of fascination – and ridicule – for the outside world. (AP)