Royal Observatory Greenwich

Must Do Experiences

• Stand with one foot in the Eastern Hemisphere and the other in the Western on the Prime Meridian Line.

• Marvel at John Harrison’s revolutionary marine timekeepers that solved the longitude problem.

• Explore interactive exhibits about space, time, and astronomy in Flamsteed House.

• Admire panoramic views over London and the River Thames from Greenwich Hill.

Hidden Gems

• Visit the smaller Kepler Telescope for a classic stargazing experience.

• Explore the surrounding Greenwich Park for hidden gardens and quiet spots.

• Check the public viewing schedule for telescope access on clear days.

What Makes it Special

• The Royal Observatory is the definitive home of the Prime Meridian, the global reference for longitude and time.

• It houses an extraordinary collection of historical astronomical instruments, including the Great Equatorial Telescope.

• Visitors can literally stand on the line that divides the Eastern and Western Hemispheres.

Perfect Timing

When to visit for the best experience

Visit early in the morning or later in the afternoon to avoid the largest crowds. Weekdays are generally quieter than weekends, and summer months offer the longest opening hours.

Photography Guide

Capture the perfect shots

• Capture the iconic photo of standing with one foot in each hemisphere on the Prime Meridian Line.

• Use the panoramic views from Greenwich Hill for stunning shots of the London skyline and the River Thames.

• Bring a wide-angle lens to capture the grandeur of the Great Equatorial Telescope inside the observatory.

Cultural Etiquette

Respect local customs and traditions

Respect the quiet atmosphere in the exhibition areas as other visitors may be enjoying the scientific displays. When visiting the park, keep to the paths and be mindful of the historic surroundings. Queue politely for the most popular photo spots along the meridian line.

Special Events & Experiences

Enhanced experiences and seasonal highlights

• May Half Term events featuring special family activities and stargazing.

• Night Sky events where you can look through telescopes at celestial objects.

• Seasonal talks and workshops on astronomy and timekeeping.

Important Guidelines & Safety

Essential safety information and guidelines

• Be aware of your surroundings in Greenwich Park, especially in the evening, and stick to well-lit paths.

• Watch your step on the grassy areas and around the observatory boundaries.

• Keep valuables secure and be cautious of pickpockets in crowded tourist areas.