1. Marrakech – Average nightly hotel rate for summer 2015: £60.27

Great hotel option with availability during the summer season: Riad Kheirredine, bookable on TripAdvisor for as little as £121.81 per night.

Places to discover: Jardin Majorelle and Latitude31

2. Siem Reap – Average nightly hotel rate for summer 2015: £37.71

Great hotel option with availability during the summer season: Shinta Mani Resort, bookable on TripAdvisor for as little as £119.77 per night.

Places to discover: Angkor Wat and Palate Angkor Restaurant and Bar

3. Istanbul – Average nightly hotel rate for summer 2015: £71.66

Great hotel option with availability during the summer season**: World Heritage Hotel Istanbul, bookable on TripAdvisor for as little as £91.87 per night.

Places to discover: Basilica Cistern and Mikla Restaurant

4. Hanoi – Average nightly hotel rate for summer 2015: £27.06

Great hotel option with availability during the summer season**: Essence Palace Hotel, bookable on TripAdvisor for as little as £39.47 per night.

Places to discover: Thanh Chuong Viet Palace and Banh Mi 25

5. Prague – Average nightly hotel rate for summer 2015: £57.83

Great hotel option with availability during the summer season: Hotel Residence Agnes, bookable on TripAdvisor for as little as £132.70 per night.

Places to discover: Prague Castle (Prazsky hrad) and Mistral Café

6. London – Average nightly hotel rate for summer 2015: £162.25

Great hotel option with availability during the summer season: CitizenM Bankside, bookable on TripAdvisor for as little as £170.48 per night.

Places to discover: British Museum and The Five Fields

7. Rome – Average nightly hotel rate for summer 2015: £86.72

Great hotel option with availability during the summer season: Palm Gallery Hotel, bookable on TripAdvisor for as little as £125.21 per night.

Places to discover: Piazza Navona and L'Asino d'Oro

8. Buenos Aires – Average nightly hotel rate for summer 2015: £63.21

Great hotel option with availability during the summer season: Miravida Soho Hotel and Wine Bar, bookable on TripAdvisor for as little as £102.75 per night.

Places to discover: Coleccion de Arte Amalia Lacroze de Fortabat and I Latina

9. Paris – Average nightly hotel rate for summer 2015: £114.34

Great hotel option with availability during the summer season: Hotel Joyce - Astotel, bookable on TripAdvisor for as little as £130.66 per night.

Places to discover: Champs-Elysees and Paradis du Fruit

10. Cape Town – Average nightly hotel rate for summer 2015: £77.21

Great hotel option with availability during the summer season: Blackheath Lodge, bookable on TripAdvisor for as little as £100.71 per night.

Places to discover: Cape Point Nature Reserve and Orphanage

Fuel your wanderlust wish list with the world's top 10 destinations of 2015