Who's afraid of the dark? Adventurer Dan Richards shines a gentle light on what goes on in our world after sunset. Then an Italy tour guide looks beyond the crowds of Florence, Venice, and Rome to share her favorite side trips that are worth the diversion. And a Mexico City guide clues us in on the multicultural neighborhoods and cosmopolitan vibe of his city, the largest metro area in North America and still growing.

A photojournalist lets us in on her favorite European hot springs to visit, from Iceland to Turkey and points in between. And a man who spent seven years traversing the globe on foot — with his faithful pup alongside him — describes how his adventure helped him learn to embrace the now.

Learn about the Ancient Ohio Trail and its cluster of mysterious geometric earthworks left behind by pre-Columbian mound-builder cultures. Then get an inside look at the World Monuments Fund's biennial selection of endangered archaeological and cultural sites, whose preservation is vital to our heritage. And what goes up, must come down: Pilot Mark Vanhoenacker shares the physics, and the magic, of landing an airplane.

Italian food expert Fred Plotkin describes some of the unusual varieties of pasta that you can find in Italy — and the reason behind their different shapes. Historian Jeff Biggers explores the Mediterranean island of Sardinia, where sites dating back to the Bronze Age are found across the island. And tour guides from Tuscany and Sicily bring us the scoop on how to find the best gelato in Italy.

Author Elaine Sciolino gives us the history behind the famous women — both artists and subjects — to visit in Paris' grand repository. Then a Romani author shares what it was like growing up in her culture as we trace the lineage and influence of the vibrant Romani people. And the well-traveled Paul Theroux provides aspiring expats a realistic assessment of what it means to leave the US in the rearview mirror.

Beloved English classics scholar Dame Mary Beard offers wisdom on how to tackle the vast collection of the British Museum, and ponders the ethics and responsibility of retaining the cultural antiquities of other lands. Then a cartoonist shares his love of museums and how they transform us by illustrating memorable moments at his favorites across North America. And a Korean American travel writer explains why Seoul is an ideal introduction to traveling in Asia, and recommends a relaxing island counterpoint to the bustling, 24-hour capital.

Spotted Dick, Eton Mess, Ploughman's Lunch: Two British guides decode the best of England's pub food and explain how far it's come since the days of soggy chips and limp sausages. Then a travel blogger shares tips for exploring the world without breaking the bank. And a pair of Dutch guides illuminate the differences between the fairy-tale provinces of Holland and the country of the Netherlands.

Meet an Irishman who scours the Emerald Isle to report on oddities and lesser-known facets of his country's culture. Then learn about the lasting impact of the Viking era in Norway and where to observe it on your next visit. And hear what it's like to bicycle 10,000 miles along the old Silk Road, from Turkey to Tibet.