A building? A temple? A synagogue? A chapel? A sanctuary?
No.
A heart. A soul. A spirit. A place of seeking to praise Him and offering complete devotion. Completeness with Him; in Him; only through Him; by Him.
Sitting, standing, kneeling, bowing, hands clasped, hands outstretched, lying face down, lying face up in solitude, in a crowd, with one or two. With or without music. Allowing all thoughts to rest on Him. Dwelling in a place spiritually that is unmatched in any other position. Being saturated with Him. Posturing physically to dwell spiritually. Taking an outward expression to prepare for an inward transformation.
Sweet worship.