Budapest is a beautiful city with so much to see and do. Here's an ideal itinerary for 3 days in Budapest:

Day 1:

• Start your day by visiting the Hungarian Parliament Building, one of the most iconic landmarks in Budapest. You can take a guided tour inside the building to learn about its history and architecture.
• After that, head to Fisherman's Bastion, a stunning terrace with panoramic views of the city. It's also a great spot for taking photos.
• From there, walk down to Matthias Church, a beautiful Gothic-style church with colorful tiled roofs.
• For lunch, try some traditional Hungarian dishes like goulash or chimney cake at a local restaurant.
• In the afternoon, visit the Széchenyi Thermal Bath, one of the largest thermal baths in Europe. Relax in the hot pools and saunas, or book a massage or other spa treatment.
• End your day with a sunset river cruise on the Danube, where you can admire the city's illuminated landmarks from the water.

Day 2:

• Start your day with a visit to Heroes' Square, a large square with statues of Hungary's national heroes and important historical figures.
• From there, walk through City Park to Vajdahunyad Castle, a fairytale-like castle with a mix of architectural styles.
• Next, head to St. Stephen's Basilica, a grand neoclassical church with stunning views from the top.
• For lunch, try some street food like langos (deep-fried dough topped with cheese and sour cream) or kürtőskalács (chimney cake).
• In the afternoon, visit the House of Terror Museum, which tells the story of Hungary's fascist and communist regimes.
• End your day with a visit to ruin bars like Szimpla Kert or Instant, where you can enjoy a drink in a unique and quirky setting.

Day 3:

• Start your day with a visit to Buda Castle, a historic castle complex with museums, galleries, and stunning views of the city.
• From there, walk across the Chain Bridge to explore the Pest side of the city. Visit the Great Market Hall, a large indoor market selling fresh produce, souvenirs, and traditional Hungarian foods.
• For lunch, try some street food like lángos or sausage from a food stand.
• In the afternoon, visit the Museum of Fine Arts or the Hungarian National Museum to learn more about Hungarian art and history.
• End your day with a visit to a traditional Hungarian restaurant for dinner, where you can try dishes like paprikash or stuffed cabbage.

I hope this itinerary helps you plan your trip to Budapest!