Hotel operator Hilton Worldwide has opened its 200th hotel in Europe.

The group has opened 50 hotels in the region over the last three years, with 20 percent of its European estate now comprised of newly introduced brands such as Waldorf Astoria Hotels & Resorts, Doubletree by Hilton, Hilton Garden Inn and Hampton by Hilton.

The 200th property - Doubletree by Hilton Varna, Golden Sands in Bulgaria - boasts a large day spa, two restaurants, a poolside bar and grill, lobby bar, indoor and outdoor swimming pools and a fitness area.

Hilton Worldwide currently has a further 80 hotels in its European pipeline, all scheduled to open in the next three years.

On a global level, the group operates more than 3,600 hotels and 600,000 rooms in 82 countries and its brands include Conrad Hotels & Resorts and Hilton Hotels & Resorts.