Andrássy út
Turn-of-the-century Andrássy út links Erzsébet Square with the Városliget and makes for one of Budapest's most pleasant walks, with lots of places to stop along the way. Modeled after Paris' Champs-Élysées, from its starting point at Bajcsy-Zsilinszky út, you can see all the way up to its end at Hősök tere. Lined with spectacular neo-Renaissance mansions and town houses featuring fine facades and interiors, but also shady green trees, it was recognized as a World Heritage Site in 2002. Today, it’s a high-end promenade filled with cafés and restaurants, embassies, and hotels. It's no accident that the city's oldest metro line goes all the way up it, with direct stops at the Opera House and other significant sites in its vicinity.