Visitors to Vienna who want to immerse themselves in some wine history may wish to pay a visit to the Hotel Palais Coburg, which keeps a cellar with an inventory worth an estimated €25 million (£22 million).

Owned by a Swiss banker, the hotel has an entire cellar devoted to 120 different vintages of Chateau d'Yquem, as well as a separate section with 1,600 bottles of champagne, the Indian Wine Academy reports.

Most impressive of all is the Rare Wine Cellar, which houses includes examples of Chateau Latour, Chateau Mouton Rothschild and La Tache from Domaine Romanee Conti, all from 1945. The oldest wine in the cellar is the German Rudesheimer Apostlewein 1727.

A daily tour of the cellar includes a glass of Pol Roger champagne, although true aficionados may be tempted by the opportunity to sample the Dom Perignon 1961, plus another dozen legendary wines, by paying an extra €6,500 (£5,750).

The collection is managed by head of wine archives Simon Klocker, and contains more than 70,000 bottles in total.