After building up an appetite while in St. Petersburg, visitors unwind and renew with, of all things…caviar? At the ultra-luxe Rocco Forte Hotel Astoria, spa guests go for the caviar facial ($183), whose secret ingredient is Sevruga, which has anti-aging, therapeutic, and rejuvenating properties. Packed with vitamins and proteins these Florian Kerstin products smell, well…deliciously un-fishy and leave the skin hydrated and smooth. For more caviar and chilled vodka head to Davidov post-treatment, the hotel’s restaurant, and enjoy the view of St. Isaac’s Square.