Strangely for me, you may think, one of my favourite large world buildings is quite modern and has come to almost represent London for me. I speak of 30 St Mary Axe. Know it? No? Better known as The Gherkin. 30 St Mary Axe is its street address. It is very visible from many parts of London and a good focus point to keep your sense of direction. It was constructed in 2004.
A couple of other favourite buildings of mine are both in New York City. One is the Flatiron building. Why? I don't really know. It reminds me a bit of the demolished Junction Hotel at St Kilda Junction. I guess I just like its shape and proportions. It was completed in 1902. The photo is large if you click on it and I recommend you do as it has some wonderful street detail. It was posted at the marvellous shorpy.com Below it is a photo of St Kilda's Junction Hotel. Note one of those new fangled electric trams in the photo. They can't last. Well, they didn't at the Flatiron, but they certainly have at St Kilda Junction.
Could humankind ever construct a building more beautiful than the Chrysler Building. Not for my money. It was completed in 1930. After the destruction of the World Trade Center in 2001, it once again became New York's second tallest building, after the Empire State Building.