Palaces and Parks of Potsdam and Berlin: One Island Appears Twice in Most Guides, and It’s Only One Place

Peacock Island is not in Tiergarten, and it is not two different attractions with two different names. It’s a single 67-hectare island sitting in the Havel river between Berlin and Potsdam, reachable only by a small ferry that has run since 1821, making it the oldest ferry service in the city. Confusing it for a Tiergarten feature, or worse, listing it twice under “Neuer Pfaueninsel” and “Pfaueninsel” as if they were separate sites, is an easy mistake that plenty of guides make, and it matters because this UNESCO inscription covers roughly 500 hectares of parkland and 150 buildings scattered across a landscape that only makes sense once you understand where each piece actually sits.

What the UNESCO listing actually covers

Inscribed in 1990, the site strings together Sanssouci Park, the New Garden, Babelsberg Park, the palace and park at Sacrow with its Church of the Redeemer, the Russian colony of Alexandrowka, the Belvedere on the Pfingstberg hill, and Peacock Island itself, connecting Potsdam and southwestern Berlin into what UNESCO calls one of Europe’s most complete surviving royal park landscapes. Construction spans nearly two centuries, from 1730 through 1916, so you’re not looking at a single architectural moment but at successive Prussian rulers each adding their own vision to the same grounds.

Sanssouci and why you cannot just show up

Sanssouci Palace was Frederick the Great’s summer retreat, built in the 1740s in a light, playful Rococo style rather than the heavier Baroque some guides mislabel it as. The single biggest practical thing to know before visiting in 2026: entry is by timed slot only, sold as the “sanssouci+” combined day ticket, and slots regularly sell out during peak season. Book online through the palace foundation’s own site rather than turning up hoping for a walk-in, since arriving even a few minutes late to your assigned slot means getting bumped to the next available opening, not simply waved in. The ticket also covers same-day entry to other state-run Potsdam palaces open that day, including the New Palace at the far end of the park, so it’s worth planning a full day around a single admission rather than treating Sanssouci as a quick stop. One more scheduling trap: nearly all of the Potsdam palaces close on Mondays, so if that’s your only free day in the city, shift the visit to Tuesday instead.

Peacock Island’s stranger history

Before it held its royal pleasure palace, the island was known as Kaninchenwerder, or Rabbit Island, after a rabbit-breeding operation set up in the late 17th century. Frederick William II acquired it in 1793 and built a country retreat there for himself and his mistress, and his successor Frederick William III later turned it into an experimental farm and menagerie stocked with alligators, kangaroos, lions, and bears, landscaped in the 1820s and 1830s by Peter Joseph Lenné, the same designer behind much of Sanssouci’s grounds. Today the animals are gone, but wild peacocks still roam free across the island, and the whole thing is protected as a nature reserve as well as a UNESCO site, which is why development on the island itself has stayed minimal. Ferry service runs seasonally, so check the schedule before you commit to the trip out.

Tiergarten and Charlottenburg, correctly placed

Berlin’s Tiergarten dates to 1527 as a royal hunting ground for the Elector of Brandenburg, not a landscaped park from the outset, and it wasn’t opened to the public until Frederick the Great did so around 1740; its current layout owes much to the same Peter Joseph Lenné who shaped Peacock Island and Sanssouci decades later. The Brandenburg Gate sits at Tiergarten’s eastern edge, adjacent to the park rather than inside it, marking what was once the frontier between East and West Berlin during the Cold War. Berlin Zoo, by contrast, genuinely does sit within Tiergarten’s boundaries, near its southwestern corner. A short distance northwest, Charlottenburg Palace, begun in the late 17th century, served as the main residence of the Prussian royal family before the court’s later shift toward Potsdam, and its grounds pair well with a stop at the adjoining Museum of Decorative Arts and Design if you have a full afternoon free.

A practical route worth taking

Trying to cover Potsdam and Berlin’s palace sites in a single rushed day usually backfires, since the Potsdam side alone easily fills a full day once you account for the timed Sanssouci entry and the walk across its grounds to the New Palace. My take, having weighed the logistics: give Potsdam its own dedicated day and save Peacock Island, Charlottenburg, and Tiergarten for a second, Berlin-based day, since the ferry schedule to the island and the timed palace slots rarely line up conveniently if you try to chain all three into one itinerary. Pack comfortable shoes regardless of which day you choose; Sanssouci’s grounds alone stretch for roughly two kilometers end to end, and there’s no shuttle running the length of the park.