Book excerpt: Rick Steves' Walks eBooks are straightforward, self-guided walking tours through some of Europe's most popular destinations, designed for easy reference on your mobile device or eReader. In Rick Steves' Walk: Heart of Rome, Rick shares his candid advice on how to get the most out of a walk through Rome's center—including where to start, how much time you need, and what's worth stopping for—all for less than the cost of a cappuccino. With Rick's knowledgeable, humorous writing in hand, you'll also learn some interesting historical facts about the things you encounter along the way. Packed with indispensable tips and recommendations from America's expert on Europe, Rick Steves' Walk: Heart of Rome is a tour guide in your pocket—and on your smartphone. Rick Steves' Walks and Tours are available for must-see locations throughout London, Paris, Rome, Florence, Venice, Amsterdam, Vienna, Budapest, Athens, and Istanbul.