The Tabán is Budapest's most haunted patch of grass. A whole quarter — Serbian Orthodox, Dalmatian, full of taverns and crooked lanes — stood on this slope between the two hills until the 1930s, when the city decided it was a slum and bulldozed it. What's left is lawn, a couple of churches, and the old Ottoman baths along the river.
About three kilometres, gentle, best in the afternoon. Start at the Rudas fürdő (thermal bath), whose octagonal Turkish pool under a dome has run since the 1560s, then walk the Erzsébet híd approach — the only all-white bridge over the Danube.
Climb into the green slope itself and read the absence: where streets and houses used to crowd, there's only grass and the marooned baroque Tabáni plébániatemplom. The Rácfürdő, another Ottoman bath, sits on the southern edge mid-restoration.
End at Szarvas tér, the little square named for the Stag House and its golden-deer sign, at the foot of Castle Hill. Tram 19 from there.