What's the must-see thing in San José?

Most travelers treat San José as a layover — land at Juan Santamaría, sleep one night near La Sabana, leave for Arenal or Manuel Antonio by 7am. That's a reasonable plan, but it means missing the one building in Central America that stops you mid-step. Teatro Nacional sits at the south edge of Plaza de la Cultura, its stone facade darkened by decades of diesel exhaust from Avenida Segunda. Inside, the air shifts. Cool terrazzo underfoot, the smell of old wood and furniture polish, and then you look up at the ceiling fresco — an 1897 allegory of coffee and banana harvest painted by Italian artists who never visited Costa Rica. The whole thing was funded by a coffee export tax after a touring opera company skipped San José for lacking a proper venue. Spite built this place. It built it well.

Directly beneath Plaza de la Cultura — same plaza, different altitude — the Museo del Oro Precolombino holds roughly 1,600 pre-Columbian gold pieces in climate-controlled dark rooms three floors underground. The effect is deliberate: you descend into dim corridors and the gold catches low spotlights, warm against black velvet. Tiny frog amulets, warrior pendants, ceremonial breastplates. The collection spans 500 BC to 1500 AD and represents cultures most visitors have never heard of — the Diquís, the Chiriquí, the Coclé. Budget forty-five minutes. Admission is about ₡7,000 for foreigners. The gift shop has decent reproduction jewelry if you're looking for something that isn't a souvenir magnet.

For your third stop — and this is where San José earns the detour over a beach transfer — walk seven blocks northwest to Mercado Central on Avenida Central between Calles 6 and 8. The market has operated since 1880 and smells like it: roasting coffee, raw fish on ice, the sour-sweet edge of tamarind pulp. Find a soda — the local word for a lunch counter — and order a casado. Rice, black beans, fried plantain, salad, and your choice of protein for around ₡3,500. The pace is loud, the seats are plastic stools, and the food is better than anything in the tourist corridor. Mind you, keep your phone in your front pocket here. The market gets crowded and pickpockets know where tourists look lost.

A word on what to skip. The Museo de los Niños looks good on paper — it's housed in the old Penitenciaría Central — but it's designed for Costa Rican school groups, not adult travelers on a short layover. The Estadio Nacional is handsome from the outside and pointless unless you have match tickets. And the Jade Museum, while often paired with the Gold Museum in guidebooks, is less immediate in its impact — jade doesn't catch light the way gold does in those underground rooms. If you have only one afternoon in San José before your shuttle leaves, the sequence is Teatro Nacional first, Gold Museum second, Mercado Central for lunch between or after. All three sit within an eight-block radius of Plaza de la Cultura. The current rainy-season drizzle — it tends to hit around mid-afternoon this time of year — makes the underground museum and the covered market better timed for the 2-4pm window.