conversation piece — something, esp an unusual object, that provokes conversation
objet d'art — an object of artistic worth or curiosity, especially a small object.
unfamiliarity — not familiar; not acquainted with or conversant about: to be unfamiliar with a subject.
newness — of recent origin, production, purchase, etc.; having but lately come or been brought into being: a new book.
weirdness — involving or suggesting the supernatural; unearthly or uncanny: a weird sound; weird lights.
abnormality — An abnormality in something, especially in a person's body or behaviour, is an unusual part or feature of it that may be worrying or dangerous.
bizarre — Something that is bizarre is very odd and strange.
eccentricity — an oddity or peculiarity, as of conduct: an interesting man, known for his eccentricities.
foreignness — of, relating to, or derived from another country or nation; not native: foreign cars.
novelty — state or quality of being novel, new, or unique; newness: the novelty of a new job.
unconventionality — disregard for convention; the state or quality of being inconsistent with customs, rules, etc.; originality.
esotericism — The tendency to promote or desire the esoteric.
esoterism — The inward forms of faith and religion; transcendence, mystic experience, and internal realizations of the Divine.
indescribable — not describable; too extraordinary for description: a scene of indescribable confusion; indescribable euphoria.
