Praça do Comércio (Terreiro do Paço), Lisbon — Grand Riverside Square + Arches + Tagus Views (Free Access)

Praça do Comércio (also called Terreiro do Paço) is Lisbon’s big “front room” by the Tagus River — a massive open square framed by arcaded buildings, with direct access to nearby highlights like Cais das Colunas and Lisbon Story Centre. There’s no ticket gate (public square), so you explore self-guided.

• Free self-guided access to Praça do Comércio / Terreiro do Paço (public square).

• Perfect for: first-time Lisbon visitors, photographers, sunset walkers, anyone doing Baixa/riverfront.
• Not ideal if you want a “quiet hidden spot” (it’s a main landmark).

• Walk the square, take photos under the arcades, and stroll toward the riverfront viewpoints.

• Tickets / price (official): Free (public space).
• Opening hours (official): no attraction gate hours (public square; businesses/museums nearby have their own hours).

• Time needed: 20—60 minutes (longer if you add nearby museums/cafés).
• Great pairing: Baixa walk + Rua Augusta area + riverfront.

Lisbon’s iconic riverside square — totally free, perfect for photos and a chill waterfront walk.