Would you believe this city has more than 200 caves - and a couple are visitable
We Kid You Not
Another of the cool and unusual things about Budapest is that underneath it's riddled with at least 200 caves. Most were discovered early in the 20th century and today there are several that are open to the public. The largest, stalactite-rich Pálvölgyi, was opened to the public in 1927 and stretches more than seven kilometres (over four miles). Its entrance is out of the city centre, at the foot of Mount Mátyás on the Buda side of the Danube (address Szépvölgyi Út 162). The other main cave, the smaller Szemlő-hegyi (Pusztaszeri Út 35), is dubbed "Budapest's Underground Garden" due to the mineral formations down here, reminiscent of bunches of grapes.