Where are the gigantic houses in Massachusetts? We have found a bunch of them across the state. Take a look at these fives homes, currently listed for sale, on Zillow.com in Massachusetts:

45 Waltham Road, Wayland: 25,400 sq ft — Situated on a 12.55-acre lot, this really huge house has a home theater, billiards room, elevator, pool, a guest house and an eight-stall equestrian barn. For Sale: $9,300,000.

0 George Hill Rd, Lancaster: 22,000 sq ft — This ginormous house is on a mind-boggling 217-acre lot. Included in the estate is: a small pond, a “secret” garden, marble fireplaces, marble bathrooms, an estate stable and a “distant Staff House.” For Sale: $11,750,000.

63 Winsor Way, Weston: 21,926 sq ft — Where a huge house meets a golf neighborhood is where you will find this place, nestled in a nearly five-acre lot. It’s modeled after a European manor, with a brick and masonry facade, and has 23 rooms, including a home theater and a wine closet. For Sale: $16,250,000.

39 Sears Road, Brookline: 15,453 sq ft — This giant Greater Boston estate dates back to 1929, but was recently renovated. The Georgian Revival manor includes a reception hall with a gold-leaf ceiling, a chef’s kitchen, eight bedrooms, a master bedroom with two dressing rooms and two baths, an elevator, a four-bay garage and a secluded swimming pool. For Sale: $17,000,000.

20 North Ave., Melrose: 15,000 sq ft — This big house north of Boston has five bedrooms and full bath suites. There’s also a floor-to-ceiling glass conservatory, an in-ground heated pool, a cabana, patio and rooftop deck. For Sale: $1,933,000.