The National Gallery Singapore is an art museum located in the downtown area of Singapore. It is housed in two historic buildings, the former Supreme Court and City Hall, which have been beautifully restored and connected to form a single museum complex. Here are key features and details about the National Gallery Singapore:

1. Location: The National Gallery Singapore is situated at 1 St. Andrew's Road, Singapore 178957. It is located in the Civic District, near landmarks such as the Padang, Merlion Park, and Marina Bay Sands.

2. Building History: The museum occupies the historic buildings of the former Supreme Court and City Hall. The two buildings were merged and extensively renovated to create the National Gallery Singapore, which opened to the public in 2015.

3. Collection: The National Gallery is home to the largest public collection of modern art in Singapore and Southeast Asia. The collection spans the 19th century to contemporary art, featuring works by both regional and international artists.

4. Singaporean and Southeast Asian Art: The museum places a strong emphasis on showcasing the art of Singapore and Southeast Asia. It highlights the diverse artistic practices and cultural expressions of the region.

5. Exhibition Spaces: The National Gallery features numerous exhibition spaces, including permanent galleries and rotating exhibition spaces for special shows. The galleries are organized thematically, covering different periods and art movements.

6. DBS Singapore Gallery: This gallery is dedicated to the development of art in Singapore from the 19th century to the present day. It features works that reflect the evolution of Singapore's art scene.

7. UOB Southeast Asia Gallery: The gallery explores the art history of Southeast Asia, presenting works from the 19th to the mid-20th century. It covers the cultural diversity of the region.

8. Rotating Exhibitions: The museum hosts a variety of temporary exhibitions throughout the year, showcasing contemporary art, international artists, and thematic explorations.

9. Keppel Centre for Art Education: This space is designed for children and families, providing interactive and educational activities to engage young visitors with art.

10. Roof Garden: The museum has a rooftop garden with panoramic views of the city skyline. The rooftop is accessible to the public and serves as a tranquil space for relaxation.

11. Restaurants and Cafes: The National Gallery Singapore offers dining options, including restaurants and cafes, where visitors can enjoy meals with a view of the city or within the historic surroundings.

12. Educational Programs: The museum conducts educational programs, workshops, and guided tours for visitors of all ages, aiming to promote a deeper understanding and appreciation of art.

Before planning a visit, it's recommended to check the National Gallery Singapore's official website for the latest information on exhibitions, events, and operating hours.