Plaza de Mayo and Casa Rosada
Buenos Aires has been shaped by generations of European immigrants, and nowhere is that history more visible than around Plaza de Mayo, the historic and political heart of the city. The square is framed by the Casa Rosada (the presidential palace), the old Cabildo and the Metropolitan Cathedral. Free guided tours of the Casa Rosada run on weekends but require online booking in advance, since slots fill up fast. On Thursday afternoons you can still see the Mothers of Plaza de Mayo make their weekly walk around the central pyramid, a living symbol of Argentina's recent history. The nearby Bicentennial Museum has free admission and is a good one-hour introduction to the country's past. From the square, Avenida de Mayo leads to the National Congress in a twenty-minute walk lined with early 20th-century buildings and old-school cafes.
San Telmo: tango, antiques and the Sunday fair
San Telmo is the city's oldest neighborhood and its most photogenic, full of cobblestone streets and colonial houses. Every Sunday, roughly from 10am to 5pm, the San Telmo Fair fills Defensa Street with antique stalls, handicrafts and live music; in Plaza Dorrego, couples often dance tango right on the street, free to watch. Antique prices vary widely: a small piece might cost between 5,000 and 20,000 ARS, while restored furniture can easily top 100 USD. For dinner, the neighborhood has classic steakhouses and family-run bodegones with fixed menus around 8,000 to 12,000 ARS. After dark, it's best to stick to well-lit main streets, especially near Avenida Independencia.
La Boca and the Caminito
La Boca, the birthplace of tango and home to the Boca Juniors football club, is famous for the Caminito, an open-air street museum lined with brightly painted corrugated-metal houses. A visit typically takes one to two hours: walk the Caminito, take photos, browse crafts stalls and grab a choripan from a street vendor for around 3,000 ARS. Football fans can add a visit to La Bombonera stadium and its museum, with tickets starting around 15 USD. It's worth stressing that La Boca is a working-class neighborhood with unsafe pockets outside the tourist circuit: stay within the few blocks set up for visitors and avoid side streets, especially at night, since tourist police presence drops off quickly beyond the main route.
Recoleta: the cemetery, Evita and the historic cafes
Recoleta Cemetery is a must-see: a labyrinth of neoclassical, gothic and art nouveau mausoleums holding presidents, generals and Eva Peron herself, in the Duarte family vault. Admission is free, with free guided tours on Tuesdays, Thursdays and Saturdays. Around the cemetery, a weekend crafts fair and the Recoleta Cultural Center round out a relaxed half-day visit. Nearby, Cafe Tortoni, founded in 1858, is the city's most famous historic cafe: coffee and medialunas cost around 4,000 ARS, though it's worth arriving early since the line can get long. Other historic cafes like La Biela or Cafe de Garcia offer the same atmosphere with fewer crowds.
Palermo: parks, Soho, Hollywood and street art
Palermo is the largest and most varied neighborhood in the city. The Palermo Woods, with the Rose Garden and its lakes, are perfect for renting a bike or a rowboat on a Sunday morning. Palermo Soho, with its tree-lined streets, is packed with independent design shops, fashion fairs and a strong restaurant scene; Palermo Hollywood, a bit further north, is the center of nightlife and chef-driven dining. The whole neighborhood also works as an open-air street art gallery, with large-scale murals along avenues like Honduras and Niceto Vega. Dinner at a Palermo Soho restaurant runs roughly 10,000 to 20,000 ARS per person including a drink.
Puerto Madero, Teatro Colon, El Ateneo and getting around
Puerto Madero, the newest and most modern neighborhood, mixes glass skyscrapers with converted 19th-century docks; crossing the Puente de la Mujer at sunset is a classic, free activity. Teatro Colon, ranked among the best opera houses in the world, offers roughly 50-minute guided tours for about 9,000 ARS for foreign visitors, departing every half hour. A few blocks away, El Ateneo Grand Splendid bookstore, housed in a converted theater, is worth a stop even if you don't buy anything. To get around, the Subte (subway) has six lines and runs roughly from 5am to 11pm; you'll need a SUBE card, sold and topped up at kiosks and stations. Palermo, Recoleta and Puerto Madero are the most recommended areas to stay for safety and proximity to major sights; avoid walking through poorly lit areas at night and use ride-hailing apps rather than hailing taxis on the street.