Live like royalty at The Mark Penthouse in New York. The 12,000 sq ft suite will set you back a whopping US$75,000 a night, making it the world's most expensive hotel penthouse.

Decorated by legendary designer Jacques Grange, the penthouse features five bedrooms, two bars and a living room with 26-foot ceiling that can be transformed into a grand ballroom. It also has its own private conservatory, dining room, private rooftop terrace and library lounge. Guests will be able to access the room via a private lift.