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Queen Elizabeth II last visited the US in 2007.
- State visits are an important tradition in the US, and follow a strict protocol.
- Donald Trump, the president of the United States, is currently hosting French president Emmanuel Macron for a state visit.
- It's the first state visit that Trump has ever handled.
- So far, observers have commented on the apparent "bromance" between the two presidents, as well as the strange moment when Trump made a point of brushing dandruff from Macron's shoulder.
- Here's a look back at some notable and opulent state visits across history.
US president Donald Trump and first lady Melania are currently hosting French president Emmanuel Macron and his wife Brigitte.
It's the first state visit that Trump's hosted. So far, it's involved glowing speeches, policy disagreements, a growing "bromance," possibly coordinated outfits, and a tour of George Washington's Mount Vernon.
But the mere presence of a world leader in the US does not a state visit make. Business Insider's Ellen Cranley reported that, technically, a state visit must include "a full-honors arrival ceremony on the South Lawn of the White House with a 21-gun salute, a state luncheon at the US State Department, and a White House state dinner."
Here's a look back at some memorable state visits from years past, which featured famous guests, sumptuous dining, and trips around America: