The salt mine in Wieliczka is a significant tourist attraction and is visited yearly by over a million people. Operation of the mine ceased in 1996, after over 750 years of continuous operation. It's one of Europe's oldest salt mines and consists of a labyrinth of tunnels of over 124 …

Known as the “largest, deepest, darkest, oldest, quietest motel room in the world,” the Grand Canyon Caverns Suite in Arizona ensures an experience unlike any other. With caverns and walls over 65 million years old and located 220 feet underground, guests will find themselves completely isolated in the largest dry …

Situated in a historic trading building – part of the Bryggen world heritage site – the Hanseatiske Hotel is a place where you can step back in time. In its long history the house has been a workplace, residence, warehouse, and restaurant. This 17th Century house has original features preserved …

The most avant-garde city in the world, Berlin, is now home to the weirdest hotel in the world: Propeller Island City Lodge. Hand-made down to the last door handle by artist Lars Stroschen, staying here is a unique experience. You could be sleeping in a floating bed or twin white …