Astute hotels now have a way to impress guests long after checkout: signature perfumes. Here, five available through their respective concierges.

FRAGRANCE Parfum ($1,153/50 ml)
HOTEL Claridge's (London; 44-207/629-8860)
BOUQUET Saffron, iris, coriander, Indian sambac
HIDDEN NOTE Only 100 of the bottles, patterned after the guest rooms' Deco faucets, were created.

FRAGRANCE Costes ($86/125 ml)
HOTEL Hotel Costes (Paris; 33-1/42-44-50-00)
BOUQUET Lavender, coriander, white pepper, rose, musk
HIDDEN NOTE It was the first fragrance created for a hotel, less than two years ago.

FRAGRANCE Palace ($38/50 ml)
HOTEL Hôtel Le Bristol (Paris; 33-1/53-43-43-00)
BOUQUET Rose, geranium
HIDDEN NOTE The aroma was inspired by the sexuality of former frequent guest Marilyn Monroe.

FRAGRANCE Brenner's ($54/50 ml)
HOTEL Brenner's Park Hotel & Spa (Baden Baden; 49-7/221-9000)
BOUQUET Sandalwood, rose, cassis
HIDDEN NOTE President Clinton bought a bottle for Hillary.

SCENT Agua de Portugal ($54/100 ml)
HOTEL Lapa Palace (Lisbon; 351-21/394-9494)
BOUQUET Mandarin orange, violet, apple, peach, cedar, moss
HIDDEN NOTE Agua re-creates the eau de toilette brought to Portugal by Princess Maria Pia of Savoy,when she married King Louis I 140 years ago.

Kathryn Harris