Public Places

Lisbon’s answer to the Champ-Elysee is an elegant boulevard, linking the Praça dos Restauradores in the Baixa district to the Marques de Pombal roundabout and the Parque Eduardo VII. With its central location and grandiose styling locals refer to it as simply 'Avenida'. 

Praça Marquês de Pombal is a major traffic roundabout marking the top end of Lisbon's central thoroughfare, Avenida Liberdade. As such it is often referred to locally as simply 'Rotunda'.

Praça dos Restauradores is a square in the central Baixa region of Lisbon. Around the square are a number of the city's most iconic buildings, including the Italianate pink façade of the Palácio Foz and the Teatro Eden and Condes Cinema buildings, both fine examples of Art Deco architectural style. At the centre of the plaza towers a 30-metre-high white obelisk, built to commemorate Portugal’s fight to regain independence in the 17th century after 60 years of Habsburg rule.

Avenida dos Aliados is generally regarded as Porto's city centre and is, as such, the most grandiose avenue. Flanked by ornate buildings in a range of architectural styles, from neoclassical to French Beaux-arts, this avenue was built to impress. As such it is home to some of the city's most prestigious hotels along with a number of banks. 
When I lived in Porto I was never quite convinced I was in an actual proper city until I wandered down to Aliados.