Sleeping happily ever after

Castle and Palace Hotels (www.CastleandPalaceHotels.com)

Not the most complete, but by far the most user-friendly site, maintained by professional travel writer and guidebook author Pamela Barrus (always gotta give props to my colleagues). There are about 20–30 hand-selected castles in most countries (Austria, France, Germany, Italy, and the United Kingdom—England, Scotland, and Wales), with about 10–20 in others (Ireland, Portugal, Spain). The interface is quick and intuitive: Click on a country, click on a region, then click on a castle (or palatial hotel) to get a concise but info-packed single page on the property, complete with photographs, prices, direct contact info, brochure-like descriptions of the castle and its history, and a few choice words and tips on the hotel from Pamela herself. Other nice touches: basic intel on how castle hotels work in each country, useful phrases in each language for booking a room, information on holding weddings, etc. She also just has a good eye for castles. I've written about them myself—for guidebooks and magazine articles—so I know what's out there and can tell you that Pamela tends to pick some of the best.

Castles on the Web (www.castlesontheweb.com)

Bukoos links on the "Accommodations" page. Could do with some organization though: some are booking engines, some direct links, some hotel reservations services... still, most seem to at least hook you up with bona fide fortresses. Happy hunting.

Relais & Chateaux (www.relaischateaux.com)

One of the granddaddies of refined luxury, an association with extremely high standards (and price tags) with more than 300 properties around the world—though heaviest in France and the rest of Europe. Not all are castles, despite the name, but even the manor houses, palaces, mansions, historic villas, and regular hotels are of the utmost in comfort, quality, charm, history, and are usually really, really expensive.

Infohub (www.infohub.com)

Links to get brochures for castle hotels in 19 countries. Only about 60 castle hotels in total, but some in odd destinations—yes, most are in Europe (Belgium, Denmark, England, France, Germany, Hungary, Ireland, Italy, Malta, Poland, Portugal, Romania, Scotland, Serbia, and Turkey, Wales), but also are few in Asia (China, India, and Vietnam).

Schlosshotels und Herrenhauser (www.schlosshotels.co.at)

Group of castle-hotels and manor houses with about 48 properties in Austria and a smattering in neighboring countries (Italy, Hungary, Slovenia, Croatia, Czech Republic—pretty much any one that had at one point and at least in part a subject of the Austro-Hungarian Empire).

Chateaux Country (www.chateauxandcountry.com)

Cat, castle; in French chat, chateaux. Get your Louis XIV groove on in the Loire Valley and other castle-ridden spots around la belle France with more than 700 castles. If you're in the market, they also rent and even sell castles.

Chateaux & Hotels de France (www.chateauxhotels.com)

This is Alain Ducasse's outfit (the chef of many Michelin stars), so you know all 500+ properties are going to be the creme de la creme of chic elegance and palatial tradition. Most are in France, with a smattering in Switzerland.

The Secret Castle-Hotels of Germany
Full reviews of eight of my favorite German castle hotels, from the Rhine River to the Necker, Bavaria to the Eifel region.

Rhine Castles (www.rhinecastles.com)

Home, home on the Rhine. Live your own Lorelei fantasy on Germany's storied river.

German Castles (www.german-castles.biz)

The Rhine doesn't have a monopoly on German castles. You can set up in a castle in Bavaria, Franconia, along the Romantic Road or the Mosel or Neckar Rivers, and other storybook corners of France.

GermanCastles.com (www.germancastles.com)

Homespun site with loads of good links on the right column.

Top 10 Castle Hotels in Ireland
Fabulous castle hotels in Ireland, from the suburbs of Dublin to the green landcapes of the west country.

British Landmark Trust (www.landmarktrust.co.uk)

Seriously historic buildings across the UK; primo stuff here.

Celtic Castles (www.celticcastles.com)

Castles in England, Scotland, Wales, and Ireland (plus a few in France).

Castles of Britain (www.castles-of-britain.com)

Click on "Travel & Castle Venues" and you'll get a page that includes, among other things, a link to a handful of ones that offer B&B accommodation as well as self-catering castles. This site is devoted to British castles in a general sense, so not all of them are places you can stay, but many are.

Dream Sleeps (www.dreamsleeps.com)

Primo lodgings across the British Isles—about two dozen each in England, Scotland, and Ireland—most of them castles, the others manor houses or other palatial homes that are darn close enough to a castle to make no odds.

Scottish Castles (www.visitscotland.com)

The Web site of Scotland's tourist board lists castles that have been turned into hotels, self-catering flats, B&Bs, and even a hostel—fancy staying in a real medieval castle for just £15/$28 (www.carbisdale.org)?

Connoisseurs Scotland (www.luxuryscotland.co.uk)

More than two-dozen select properties in Scotland—some modern, some lodges (one a train), but several are hotels converted from castles or castle-like old manors houses. All of them are luxurious.