Alcove

Noun

 * 1) A small recessed area set off from a larger room.

Thesaurus
arbor; bay; belvedere; bower; carrel; conservatory; corner; cove; cranny; cubby; cubbyhole; cubicle; gazebo; glasshouse; greenhouse; inglenook; kiosk; lathhouse; niche; nook; oriel; pagoda; pergola; pitchhole; recess; recession; retreat; roomlet; snuggery; summerhouse