The Excelsior Hotel Gallia in Milan, Italy, hosts the most opulent hotel suite in the world, according to this year's World Travel Awards.

The Katara Suite, which has retained its title as the World's Leading Hotel Suite for a second year, is also the grandest when it comes to scale. At 11,000 square feet it is the largest hotel suite in Italy.

The WTA winners were chosen by a panel of experts in the travel industry, singling out the best resorts, destinations and airport lounges on the planet.

The sumptuous accommodation sleeps up to eight people, and is perfect for diplomats. It includes luxuries you might expect – such as a private terrace and opulent bedrooms – as well as some surprising bonuses, like bulletproof windows and a private spa.

Can't afford the £17,000-per-night room rate? Take a tour of the suite below.

The Katara Suite is one of the largest hotel rooms in Italy, and sleeps up to eight people.

(Excelsior Gallia (Excelsior Gallia)

It is approximately 11,000 square feet, making it Italy's largest hotel suite.

(Excelsior Gallia (Excelsior Gallia)

It costs £17,000 ($20,000) per night to stay in the palatial penthouse, which has everything from a 10-seater dining table to a private spa.

(Excelsior Gallia (Excelsior Gallia)

Like many of the hotel's rooms, the Katara's master bedroom has an opulent Italian design.

(Excelsior Gallia (Excelsior Gallia)

There are four bedrooms in total, including two children's bedrooms, which contain chandeliers made with Murano glass.

(Excelsior Gallia (Excelsior Gallia)

The hotel suite is designed with high-profile travellers in mind, and even includes a conference room, bulletproof windows and a direct "diplomatic entrance" with lift for heads of state or high-profile celebrities who might be staying there.

(Excelsior Gallia (Excelsior Gallia)

According to an emailed statement, the suite's "discreet security features" make it a good option for diplomats and "high-level delegations."

(Excelsior Gallia (Excelsior Gallia)

The Katara Suite contains two terraces — one with a living and dining area, and another with a "solarium" which is perfect for sunbathing in the middle of the city.

(Excelsior Gallia (Excelsior Gallia)

The sunloungers were designed by Fendi Casa and match the terrace's surrounding greenery.

(Excelsior Gallia (Excelsior Gallia)

A 10-seater dining table is the ideal way to use the 24-hour butler service included in the suite rate.

(Excelsior Gallia (Excelsior Gallia)

It even has its own private Padoga spa room, which includes a hot tub under a dome, a Turkish bath and a sauna.

(Excelsior Gallia)

Even without the spa, there are plenty of places to relax in the suite, like this master bathroom with its own whirlpool bath.

(Excelsior Gallia (Excelsior Gallia)

There is also an option to book the neighbouring Princess Suite, which joins onto the Katara, adding an extra bedroom, bathroom, and living room.

(Excelsior Gallia (Excelsior Gallia)

Read more: