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Secret Worlds

The Rock of Gibraltar had become a prized military asset, especially during the Second World War (Credit: The Travel Show)
Secret Worlds

Britain’s secret WW2 spy cave

By BBC's The Travel Show

A traboule in one of the old quarters of Lyon, France
Secret Worlds

The labyrinth the Nazis never mastered

By Luis Carballo and Iryna Gibert
The first animal Lake spotted on her tour of Cayo Saetía was an ostrich (Credit: Arterra Picture Library/Alamy)
Secret Worlds

The unexpected animals roaming Cuba

By Roseann Lake
Milpa Alta feels worlds away from Mexico City, with forests covering approximately 50% of the delegation (Credit: Megan Frye)
Secret Worlds

Where people speak the Aztec language

By Megan Frye
For 170 years, the River Farset has been buried 60cm below Belfast’s surface (Credit: Eliot Stein)
Secret Worlds

The secret hiding below Belfast

By Eliot Stein
One of Niyomvanich’s greatest concerns is who will take over the store when she can no longer run it (Credit: Barcroft Media/Getty Images)
Secret Worlds

A real-life cabinet of curiosities

By Courtney Lichterman
(Credit: Daniel Selmeczi)
Adventure & Experience

The city with a secret underwater world

By Piet van Niekerk & Werner Hoffmann
The El Zanjón de Granados museum acts as the entryway to some of Buenos Aires’ tunnels (Credit: El Zanjón de Granados)
Adventure & Experience

Buenos Aires’ mysterious secret tunnels

By Bridget Gleeson
More than 2,000 years ago, Baia was the Las Vegas of the Roman Empire (Credit: Maxime Bermond/Getty Images)
Sunken Civilisation

The sinful city swallowed by the Earth

By Adrienne Bernhard
The Church of St Jovan and Lake Ohrid in Macedonia (Credit: Insights/Contributor/Getty Images)
Videos

A secret hidden in Europe’s oldest lake

By BBC's The Travel Show
The Alhambra's Court of the Lions in Granada, Spain (Credit: Mark Horn/Getty Images)
Videos

The secret world of an opulent palace

By Salvatore Valeri & Koldo Bika
Visitors can soon take a ride on London's old Mail Rail (Credit: CHRIS RATCLIFFE/Getty)
Videos

London’s secret underground mail rail

By BBC's The Travel Show
Medical facilities were built under Budapest’s Buda district during World War II (Credit: Eye Ubiquitous/Getty)
Secret Worlds

A secret war hospital frozen in time

By Sara Toth Stub
The hidden VIP exit beneath Manhattan's New Yorker (Credit: Overflightstock Ltd/Alamy)
The Travel Show

A secret tunnel to New York’s best view

By BBC's The Travel Show