A bathroom made entirely of gold and precious jewels by jeweller Lam Sai - wing in Hong Kong, worth about ₹22 crore ($3. 5 million), is recognised by Guinness as the world's most expensive bathroom. Everything including toilet bowls and wash basins are made out of solid 24 - carat gold and the floor is embedded with gold bars. The bathroom was built in 2001.
Source: Guinness World Records