Luxury in the clouds: Shanghai opens world's highest hotel

J Hotel occupies the top floors of the 632m Shanghai Tower in the city's financial district. - AFP

SHANGHAI (AFP): The world's highest luxury hotel, boasting a restaurant on the 120th floor and 24-hour personal butler service, has opened in Shanghai to guests with deep pockets and a head for heights.

Elevators whizz guests up the intimidating spiral-like skyscraper at ear-popping speeds of 18 metres per second to the J Hotel's 165 opulent rooms.