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.
10 tips to keep your hand baggage
Find out what type of packs are considered hand baggage and how to can change them so that they can go in the cabin with you during the flight.Free download