Yes, you'll find most hotel reservations are refundable provided that you cancel prior to the accommodation's cancellation deadline, which often is within 24-48 hours of check in. If you booked a non-refundable reservation, it may still be possible to cancel it and be given a refund within a 24-hour period of booking. Add your dates and click on "Search", then you can use the "fully refundable" filter to view top deals close to R. Samoilovich's Memorial Museum.