Some bridges do more than get you across a river. The world's most famous spans have become destinations in their own right — the kind of structures people fly in to walk, cycle or photograph. A recent roundup from Global Traveler spotlighted eleven of these legendary bridges as holiday inspiration, and it's a good prompt to think about crossings as attractions rather than afterthoughts.

Think of the usual heavy hitters: San Francisco's Golden Gate, with its Art Deco towers and fog-draped red spans; the medieval stone arches of Charles Bridge in Prague, lined with baroque statues and at its atmospheric best at dawn; Sydney Harbour Bridge, which you can actually climb for a view over the Opera House; and Venice's Rialto, the oldest of the bridges spanning the Grand Canal. Each one anchors a city break on its own — you don't need to build a whole itinerary around them, but you'd regret skipping them.

Others reward a more dedicated detour. London's Tower Bridge still lifts its bascules for river traffic, and its high-level walkways offer a glass-floor view of the Thames. Brooklyn Bridge connects two of New York's most photogenic neighbourhoods on a pleasant half-hour walk. Further afield, Portugal's Dom Luís I Bridge in Porto carries pedestrians on its upper deck with sweeping Doura valley views, while Japan's rainbow-arched Kintaikyo in Iwakuni has been rebuilt in timber for centuries using traditional techniques — a reminder that 'legendary' doesn't always mean steel and cable.

The practical appeal is obvious. Bridges are free landmarks, usually central, and they naturally structure a day of sightseeing: cross one, arrive somewhere new. Morning is generally your friend for crowd-free photos, and several — Brooklyn, Charles, Tower — charge nothing or very little to experience on foot. For photographers and city-break travellers especially, a famous bridge is often the single most reliable highlight of a short trip.