Hmm, London has about 40-50 major historical sites/ large landmarks - everything from universities to megamalls, palaces to supertalls. NYC, Paris, Shanghai & Beijing the same.
Here are some of the lesser known ones in London:
Royal Holloway University
https://erasmusu.com/en/erasmus-rhul...-london-405079,
www.acetennis.co.uk
www.studenthut.com
https://www.flickr.com/photos/odins_raven/4995373274
Cliveden
https://ichef.bbci.co.uk
www.telegraph.co.uk,
www.clivedenhouse.co.uk
Windsor Castle - really a lavish palace of over 1000 rooms
https://www.alamy.com/stock-photo-ae...173749348.html
Tate Modern - the worlds largest modern art gallery
https://www.independent.co.uk/arts-e...-a7990226.html
Ascot Racecourse that can hold 80,000 (there are 5 other over 60,000 seater stadia)
www.windsor.gov.uk
Whitehall a street lined with palaces of govt office
https://media.rightmove.co.uk
Royal Naval Greenwich (former palace complex now uni and museum)
www.visitgreenwich.org.uk
www.alexbeckett.co.uk
Westfield Mall West one of the 4 megamall complexes that surround the centre
www.urw.com
St Pancras Station - the world's biggest building in the late 19th Century
www.stpancraslondon.com
https://stpancras.com,
www.gorgeousfilm.co.uk
Natural History Museum - the world's largest organic collection with 80 million specimens in a vast museum and science complex
https://cdn.tourbytransit.com
V&A - world's largest decorative arts museum, 4 million pieces
https://vanda-production.com
www.vam.ac.uk,
https://media.timeout.com
www.thetimes.co.uk,
http://www.vam.ac.uk/content/exhibit...installations/
Hampton Court Palace, the country's largest
http://highlevelphotography.co.uk
www.timotheebotbol.com,
www.britain-magazine.com
Alexandra Palace, one of the 19th Century's 'Peoples Palaces' (the other one was Crystal Palace), a hilltop complex so large it's largely sat empty and falling into ruin for most of the 20th Century. Noone really knows what to do with it since they uprooted the trainline away, stranding it in the suburbs.