Museums and Art Galleries (Second attempt)

Looks like I'm doing well on the museums and art galleries front:

Museums:

• London Transport Museum
• Sherlock Holmes Museum
• Dicken's House Museum
• Maritime Museum, Greenwich
  
• Cutty Sark and Golden Hind
• Bank of England Museum
• Guards Museum in London
  
• HMS Belfast
• Clockmakers' Museum
• Dr. Johnson's House
• Hogarth's House
• Kensington Palace
• The National Archives
• Museum of Brands, Packaging and Advertising
• Wellcome Collection
• Madame Tussauds
• Science Museum
• Natural History Museum
• Victoria and Albert Museum
• Royal Observatory, Greenwich
• Wellington Arch

Art Galleries:

• Barbican
• White Cube
• Dulwich Picture Gallery
• Guildhall Art Gallery
• National Gallery
• National Portrait Gallery
• Tate Modern
• Tate Britain