Walk the 1,441-room imperial summer palace of the Habsburgs through the Grand Tour (40 audioguide rooms) — including the Hall of Mirrors where 6-year-old Mozart performed — then climb the Baroque gardens to the hilltop Gloriette for the postcard view back over the palace. This is Vienna's single most famous sight, a UNESCO World Heritage site, and the one 'imperial Vienna' moment a first-timer regrets skipping. Book a timed slot in advance on the official Imperial Tickets shop — it sells out daily.
What to expect
You'll spend your morning and early afternoon walking through 40 audioguided rooms of the 1,441-room imperial palace, following the Grand Tour route past gilded ceilings and the Hall of Mirrors where young Mozart once performed. After exploring the palace interiors, you climb the manicured Baroque gardens uphill to the hilltop Gloriette, where you pause for the iconic postcard view back across the entire compound—the moment Vienna reveals why this UNESCO site defines Habsburg grandeur. The rhythm is self-paced: palace rooms flow into one another, then a gradual ascent through formal gardens gives you time to catch your breath and absorb the scale. By afternoon you descend, retracing your steps through the grounds to exit and make your way back to the pier.
Direct wins. The ship's Schönbrunn excursion runs ~$55-$90 (Viking lists it ~$53; ocean/premium versions push $75-$90). Buy the €38 (~$41) Palace Ticket direct and take the U-Bahn (~€2.40 each way, ~25 min from the center) — you save roughly $15-$50/person and skip nothing but the markup. The only thing the ship adds is the bus and a guide.
Good to know
Book your timed slot weeks ahead on the official Imperial Tickets shop (it sells out daily); the €38 Palace Ticket with 40-room audioguide is all you need to see the palace and gardens. From the pier, take the U-Bahn subway (~€2.40 each way, ~25 minutes to the palace) rather than the ship's excursion (which costs $53–$90 and adds only a bus and guide). Plan 3–4 hours inside the palace and gardens, leaving yourself at least 90 minutes to return to the ship via U-Bahn and account for any delays. Bring comfortable walking shoes (the gardens involve uphill climbing) and your phone or mobile device to display your e-ticket at entry.