Paris rewards both the planner and the wanderer. Founded by a Celtic tribe on an island in the Seine and later shaped by Roman engineers, medieval kings, Haussmann's grand boulevards, and a parade of artists and revolutionaries, the city wears its layered history in plain sight. You can stand where Marie Antoinette awaited the guillotine in the morning and sip natural wine in a candlelit cave a la manger by night.

With only three days, the smart move is to anchor each day in one walkable quarter and let the city's rhythm do the rest. The Metro is fast, cheap, and goes everywhere; a Navigo Easy card or a contactless tap on the turnstile saves fumbling for tickets. Distances between the marquee sights are shorter than they look on a map, and Paris is a genuinely great walking city, so pack comfortable shoes and budget time to simply drift along the river.

Come hungry. Parisian food culture runs from flaky croissants at the corner boulangerie to bistro classics like steak frites and duck confit, plus a world-class cafe scene and some of Europe's best natural-wine bars. Late spring and early summer (your June visit) bring long golden evenings, packed terraces, and the city at its liveliest, though popular museums and restaurants book up fast, so reserve the big-ticket items before you arrive.