Budapest's Secret Places

Along the Pest side of the Danube, a 19th-century brick customs warehouse has been wrapped in a striking modern glass shell that gave the building its nickname: Bálna, "the Whale". Today it holds cafes, restaurants, shops, and offices, but the building and its riverside promenade are open to anyone, free, at any hour.

The combination of old industrial brickwork and a curved glass roof has made it a magnet for photographers and, memorably, for Hollywood: it stood in for NASA's headquarters in the 2015 film "The Martian", starring Matt Damon.

Sit on the steps facing the river as evening comes on, and you'll watch the sun set directly behind Buda Castle on the opposite bank — one of the simplest, best free views in the city.

Where a factory complex once stood, the city built a genuinely different kind of park: without old factory buildings blocking the wind, fresh air moves through freely, and hanging gardens climb where machinery used to run. Locals sometimes call it Budapest's version of New York's High Line.

Two small lakes, benches, walking paths, playgrounds, and a picnic-friendly hill make it a genuine escape in the middle of the city, and the National Dance Theatre hosts contemporary performances on site. In spring, a cherry grove blossoms across part of the park.

The surrounding Lövőház Street and Margit district have become one of Budapest's rising creative neighborhoods, with cafes and restaurants a short walk from the park gates.

Budapest's Nyugati ("Western") Railway Station, opened in 1877, was designed by the Paris engineering firm of Gustave Eiffel — the same office behind the Eiffel Tower. Its ironwork train hall and ornate facade make it one of the city's more overlooked architectural landmarks, hiding in plain sight as a working transit hub.

One side building now houses a branch of McDonald's, often called one of the most architecturally striking branches of the chain anywhere in the world, opened in 1990 as Hungary's second location.

As a functioning public train station, the whole building is freely open to walk through, whether or not you're catching a train — a genuine piece of 19th-century engineering history doubling as everyday infrastructure.