Meet your driver at your accommodation in Belgrade and settle into your private vehicle for the 3.5-hour journey to Budapest (365 kilometers, only highway). On arrival, greet your local guide and set off on a comprehensive 3-hour city tour of Budapest, starting with the view from Gellert Hill. Enjoy an unbeatable panorama of the city and the Danube River as your guide fills you in on the city's two halves: Buda, the ancient seat of the Hungarian kings and Pest, the heart of the modern city. Start your explorations in Buda with a tour of the medieval castle and follow your guide around Trinity Square, Fisherman's Bastion and Matthias Church. After snapping photos of the grand Buda Castle, which dates from the 13th century, cross the iconic Chain Bridge into Pest, stopping to admire the magnificent Hungarian Parliament building on the waterfront. Browse the shops along lively Vaci Street, then take a peek inside the opulent St. Stephen's Basilica, where the star attraction is, somewhat bizarrely, the right hand of its namesake King Stephen. Next, stroll down the elegant Andrassy Avenue, home to the lavish Hungarian State Opera House, and marvel over the monuments of Heroes Square. For lunch (own expense), follow your guide's recommendations and tuck into some traditional Hungarian cuisine at a local restaurant. Gulyas stew will be a good choice. In the afternoon, enjoy around 3-hours of free time to wander around the city independently, hit the shops or take a soak at the famous Gellert bath (admission not included). Around 17:00, meet up with your guide for the return trip to Belgrade and finish your tour with a drop-off at your hotel.