In order to discover the 'hidden gem' in different cities, TravelSupermarket has selected data that shows: The least reviewed 5-star attractions on TripAdvisor. To collate this data, a list of the world’s most popular cities was collected. We then took to TripAdvisor and scraped the attractions in the "Sights & Landmarks" and "Nature & Parks" categories. The highest rated attraction with the least reviews was selected as the ‘hidden gem’ in the city. Attractions that were considered unfitting for the two categories above (i.e. those not deemed a "Sight & Landmark" or "Nature & Park") were excluded from the data set and a minimum review count of 50 and a maximum of 1,000 was selected for each thing to do. You can view the data and image attributions here - all correct as of March 2019.

In the height of summer, tourists can spend hours waiting in lines to see the world’s most famous attractions and landmarks. But there’s more to your holiday than waiting around in long queues.

We’ve used TripAdvisor data to reveal the hidden gems in the world’s most popular cities, and by ‘hidden gem’ we mean the least reviewed 5-star attractions on TripAdvisor.

Use the tool to discover more about the hidden gems around the world.

Infographic displaying the world's hidden gems in popular cities

Click on the information icon to find out more

The Heydrich Terror Memorial

Prague, Czech Republic

★★★★★5.0
837 Reviews

Masjid Wilayah Persekutuan

Kuala Lumpur, Malaysia

★★★★★4.5
126 Reviews

Hamilton Park

New York City, United States

★★★★★5.0
113 Reviews

King Faisal Mosque

Dubai, United Arab Emirates

★★★★★4.5
101 Reviews

Serefiye Sarnici

Istanbul, Turkey

★★★★★5.0
85 Reviews

Guyi Garden

Shanghai, China

★★★★★4.5
82 Reviews

Kennedy Park

Miami, United States

★★★★★4.5
80 Reviews

Stahl House

Los Angeles, United States

★★★★★5.0
71 Reviews

Painted Hall

London, England

★★★★★5.0
70 Reviews

Hongludi

Taipei, Taiwan

★★★★★4.5
70 Reviews

Rot Fai Park

Bangkok, Thailand

★★★★★4.5
67 Reviews

Bishan Ang Mo Kio Park

Singapore, Singapore

★★★★★4.5
65 Reviews

University of Economics & Business

Vienna, Austria

★★★★★5.0
64 Reviews

Cliff Path Loop

Dublin, Ireland

★★★★★5.0
60 Reviews

Alter Sudlicher Friedhof

Munich, Germany

★★★★★4.5
59 Reviews

Seokchon Lake

Seoul, South Korea

★★★★★4.5
59 Reviews

Il Presepe dei Netturbini

Rome, Italy

★★★★★5.0
57 Reviews

Sakuya Konohanakan

Osaka, Japan

★★★★★4.5
56 Reviews

Santa Maria della Passione

Milan, Italy

★★★★★4.5
54 Reviews

Iglesia de Nuestra Senora de la Concepcion

Madrid, Spain

★★★★★4.5
54 Reviews

Het Twiske

Amsterdam, Netherlands

★★★★★4.5
52 Reviews

Hong Kong Geopark

Hong Kong, China

★★★★★4.5
51 Reviews

Hospital Sant Pau

Barcelona, Spain

★★★★★4.5
51 Reviews

Eglise Val-de-Grace

Paris, France

★★★★★4.5
51 Reviews

Jiyu Gakuen Myonichikan

Tokyo, Japan

★★★★★4.5
51 Reviews