Upon encountering this small dwelling atop a rock in the middle of a river, you might wonder if it belongs there. According to Milija Mandić, the island (also known as Gljiva, which translates to fungus), it does. In 1968, it was built as a one-bedroom hut in the middle of the Drina River in Serbia as a swimmers' retreat. Numerous vacationing students and young adults found shelter in the hut throughout their summers. Although weather and natural occurrences have destroyed the hut many timessix times in the last 45 yearsMandić has rebuilt the structure for it to maintain its services on the river. The house's most recent wreckage was in December 2010, but it still remains in its original spot today, since 1968.

[via Curbed]