Extras
On Costa Rica’s Pacific coast, turtles and jaguars collide in unexpected ways.
Uncover the secret world of New York and London’s resilient pigeon flocks.
Who rules the streets -- and skies -- of the city?
Discover how pigeons find a mate for life.
Times Square never shuts down, and neither do its pigeons.
Follow a female mountain lion in the Montana mountains over the course of a decade.
A mother mountain lion risks her life to feed her six kittens.
Mountain lions risk everything to hunt elk, prey more than twice their size.
Find out why deadly flash floods are on the rise and how we can protect ourselves from them.
Jonathan Karl explores Trump's focus on retribution in new book
Latest Episodes
Seductive Venice; cultured Florence; charming hill towns; eternal Rome; Naples; Sicily.
Warsaw's heavy history and lively bustle; red-brick Toruń; Malbork Castle; maritime Gdańsk.
Kraków's grand square, Wawel Castle, communist-era Nowa Huta; sobering Auschwitz-Birkenau.
The ultimate road trip; Lake Mývatn; Eastfjords; lagoons and waterfalls; Westman Islands.
The vibrant capital; Blue Lagoon; Golden Circle's majestic nature; Snæfellsnes Peninsula.
Rome’s rise, as seen in its supersized monuments, colorful mosaics, and marble Caesars.
Greece’s timeless art: Golden Age temples, alluring Venuses, and exuberant Winged Victory.
Celebrate with the locals in Sevilla, Paris, Pamplona, Munich, Nürnberg and the snowy Alps
Rick visits skyscraper-studded Frankfurt and Nürnberg, capital of the Third Reich.
Along the Loire River Valley, the beautiful French countryside is studded with châteaux.