This gem of a hotel in Berkshire, UK is truly fit for a duchess. No, really, Cliveden House even hosted Meghan Markle's pre-royal wedding sleepover! Situated on 360 acres of national trust gardens, you and your love can take part in private boat rides along the River Thames with chef-made picnic lunches. You can also enjoy luxury spa treatments while surrounded by lavender and rose fields. And for those looking for a more secluded retreat, the property's Spring Cottage offers private access to the River Thames and a private garden. Can you say romantic escape?