Just minutes from the Parthenon and the lively streets of Plaka, this luxury hotel offers 314 deluxe guest rooms, including 18 suites.

Chill out on the magnificent roof top terrace at the Athens Ledra Marriott, where the swimming pool overlooks the Acropolis.

Alternatively, take in some of the best views in the city while enjoying a meal in the Panorama rooftop bar.  Open for lunch and dinner, the bar also serves snacks and drinks poolside.

 Hotel website: Athens Ledra Marriott

The Berkeley, Wilton Place, Knightsbridge, London SW1X 7RL, United Kingdom

With spectacular views over Knightsbridge and Hyde Park, The Berkeley is the only hotel in London to have a specially designed rooftop swimming pool with a sliding roof.  Guests could find themselves doing laps with the rich and famous.

A firm favourite with A-list celebrities, The Berkeley is within easy reach of Harrods, Sloane Street and all the Knightsbridge stores. 

Enjoy a girls' night in, dine in style at Marcus Wareing's Michelin-starred Pétrus restaurant, sip cocktails in The Blue Bar, or tuck in to afternoon tea in the Caramel Room.

Hotel website:  The Berkeley