The National Gallery is an art museum located in London, England. It was founded in 1824 and opened to the public in 1838. The museum's collection consists of over 2,300 paintings, which span a period of more than 700 years from the 13th to the 21st century. The museum's collection includes works by many of the greatest European artists, including Leonardo da Vinci, Raphael, Michelangelo, Rembrandt, Vermeer, and Van Gogh.

The National Gallery is located on Trafalgar Square in central London, and the building itself is an architectural masterpiece. The museum has undergone several expansions over the years, and today it consists of four main buildings: the Sainsbury Wing, the West Wing, the East Wing, and the Central Hall. The Sainsbury Wing, which was opened in 1991, contains the museum's collection of early Renaissance paintings, while the West Wing houses the collection of Italian Baroque art. The East Wing is home to the collection of 19th-century paintings, and the Central Hall is the museum's main entrance and foyer.

Some of the most famous paintings in the National Gallery's collection include "The Arnolfini Portrait" by Jan van Eyck, "The Ambassadors" by Hans Holbein the Younger, "The Hay Wain" by John Constable, "Sunflowers" by Vincent van Gogh, and "The Virgin of the Rocks" by Leonardo da Vinci.

The National Gallery is open every day except December 24-26 and January 1. Admission to the museum is free, although there may be charges for special exhibitions. The museum also offers a wide range of events, talks, and tours, as well as educational programs and resources for schools and families.