1. The Icehotel in Jukkasjärvi, Sweden.
The world's largest and oldest ice hotel is rebuilt every year in December, and nearly everything — from the walls, to the beds, to the glasses at the bar — is made out of the cold stuff.
4. The Balea Ice Hotel in Cîrţişoara, Romania.
Secluded in the Făgăraş Mountains of Romania, the hotel is accessible only by cable car. Also on the property? An ice restaurant, ice bar, and ice church.
8. The SnowVillage Snow Hotel in Kittilä, Finland.
30 rooms made of ice and snow, incredibly detailed art in the walls, and an ice chapel that lets couples get hitched Frozen-style? Check, check, and check.