We've scoped out some of the most romantic, crazy-amazing hotels around the world—from a 16th century castle to a five-star fantasy overlooking one of the world's greatest monuments for love—where he can put a ring on it.

Nevis: Montpelier Plantation Inn

The wow factor: Proposal in a 300-year-old sugar mill

Nevis, a low-key Caribbean island, has loads of gorgeously-decayed plantation ruins, many of which have been converted to intimate boutique hotels. At the 19-room Montpelier Plantation Inn, couples can request a private dinner (gingerbread crusted rack of lamb, anyone?) in a towering 300-year old mill—you'll be surrounded by hand-cut stone walls and glowing candlelight.

Rooms from $345, Montpelier Plantation Inn

Photo: Courtesy of Montpelier Plantation Inn