) -- "The only difference between men and boys," the old saying goes, "is the price of their toys." But grownups need nice toyboxes as well.

After all, you don't want to stick a $400,000 Ferrari at a parking meter, right?

So, true car enthusiasts often have garages the size of small houses -- complete with bathrooms, bedrooms, kitchens and more.

"Only people who truly love automobiles will understand why I would invest so much in a garage," says Oregon homeowner Gary Holman, who's selling a $1.8 million estate that includes an elaborate, 6,000-square-foot garage/carriage house.

Holman's carriage house not only has room for a dozen cars, but includes a large woodworking shop and two-bedroom suite.

"It is my place to relax, create

and have a martini in hand," he says. "An occasional nap on the couch is also a frequent activity."

Tanya Tonge, Holman's real estate agent, says massive garages are somewhat common in rural Oregon, where lots of folks focus on outdoor activities.

"It's a guy thing," Tonge says. "I know a few fellas that use their garage to store cars, boats, coaches, ATVs -- you name it. The wives/girlfriends just understand that they have a very elaborate man cave."

Here's a look at five of the coolest garages listed for sale on, the National Association of Realtors' official property site:

20-acre estate, Baker City, Ore.


$1.8 million

Listing agent:

Tanya Tonge, Cascade Sotheby's International Realty, 541-323-2750

There's a dozen custom cars, a few motorcycles and a restored 1948 Ford 8N tractor in Holman's 3,000-square-foot garage, which also features two plasma-screen TVs, a bathroom/shower, a lounge and car lift.

The garage takes up half of an elaborate carriage house that also includes a 1,500-square-foot woodshop and an upstairs bedroom suite.

The structure is part of a woodland estate some 300 miles southeast of Portland, near the Anthony Lakes Ski Area and four national forests.

The 20-acre spread also hosts a massive log cabin with five bedrooms, five bathrooms, a large deck and more.



for details.

The Glass Pavilion, Santa Monica, Calif.


$15.9 million

Listing agent:

Suzanne Perkins, Sotheby's International Realty, 805-969-9993

Located on 3.5 acres in Santa Monica's tony Montecito district, this 2-year-old modernist house includes an art gallery the owner uses to display his vintage-car collection.

With polished floors, walnut-lined walls, museum-quality lighting and enough space for 32 vehicles, the gallery holds classic cars from Mercedes, Ferrari and other super-premium brands. A huge Mobil "winged-horse" logo adorns the wall, while huge glass windows make the collection visible from the outside.

The Glass Pavilion also features five bedrooms, 5.5 bathrooms and a massive wine room -- all surrounded by superclear Star Fire glass, more typically used for jewelry-display cases.Learn more about the house


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Three-acre estate, Paradise Valley, Ariz.


$9 million

Listing agent:

Joan Levinson, Realty One Group, 480-998-5673

This home's 15-car "show garage" looks like something out of Chitty Chitty Bang Bang.

Classic cars sit atop a red-and-white checkerboard floor, framed by vintage gas pumps. There are also matching red-and-white walls and museum-grade lighting.

Located in exclusive Paradise Valley outside Phoenix and Scottsdale, the home also features six bedrooms -- including four children's bedroom suites that each have their own jacuzzi, shower and walk-in closet.

The house also boasts a wine room and a nine-seat theater, while the grounds host a tennis court, swimming pools, a guest house and a second "bus garage."

You can see all of the details



53-acre estate, Franklin, Tenn.


$4.8 million

Listing agent:

Christopher Thompson, Tim Thompson Premier Realtors, 615-790-8884

Located some 20 miles south of Nashville, this estate includes a massive garage the owner uses to house his large antique-car collection.

The climate-controlled space features polished floors, chandeliers, an old-fashioned Texaco gas pump and other authentic memorabilia.

Beyond the garage, the house offers five bedrooms, seven bathrooms, an elevator and a huge sitting porch. The estate also includes a guest farmhouse, a pond and more.



for complete details.

By the way, if you like the owner's car collection, it's for sale for a separate price.

Six-bedroom mansion, Austin, Texas


$3.5 million

Listing agent:

Cord Shiflet, Moreland Properties, 512-480-0848, ext. 164

Cord Shiflet is the listing agent and owner of this home, where he built a four-car detached garage to house some of his 17 cars and motorcycles. (The house also has a two-car attached garage for everyday use.)

Shiflet's "show garage" features beamed cathedral ceilings, a bathroom and a $27,000 Danghia chandelier.

Pull the cars out and the 2,500-square-foot space doubles as a disco, with the garage doors opening out onto the property's covered porch and pool area.

The property's Rob Roy-style main house features five bedrooms, 5.5 bathrooms, a pool, hot tub and a swim-up bar.

Check out the 1.3-acre property's complete listing



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