2. The Ice Hotel, Sweden
This hotel as the name says is made of ice.
It is filled with ice sculptures and food and drinks chosen for circumstances.
Guests sleep on ice bed in temperature as low as -8 deg C.
The hotel is rebuilt every year as the ice melts in the spring.
Ice blocks are taken from the nearby Torne River.
The hotel is constructed using layers of "snice" - a mixture of snow and ice - which features the insulating properties of snow and is both lighter than ice and stronger than snow.
Each year the mixture is sprayed over arch-shaped frames and left to set until they are solid enough for the moulds to be removed and reveal a stunning ice hotel.
