Ali Sadr, Iran
Ali Sadr Cave
This vast, water-filled underground labyrinth can only be toured by boat.
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Places on this traveler's wishlist.
Ali Sadr, Iran
This vast, water-filled underground labyrinth can only be toured by boat.
London, England
This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.
London, England
A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.
Partschins, Italy
Typewriter museum housing more than 1,500 machines preserves the history of the grandfather of computers.
Nemi, Italy
Caligula's colossal pleasure ships, discovered by Mussolini only to be lost in flames.
Venice, Italy
The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.
Palermo, Italy
Cave shrine on Monte Pellegrino.
London, England
This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.
Pisa, Italy
Anatomical cabinet holds unexpected treasures.
Borgo Grotta Gigante, Italy
One of the largest caves in the world open to the public.
Rome, Italy
The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.
Alghero, Italy
Stalactites and stalagmites in a beautifully lit cave.
Chicago, Illinois
A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.
Chicago, Illinois
Home to a protest movement, a bombing, and a dramatic change in labor history.
Chicago, Illinois
First planned industrial community in the United States.
Chicago, Illinois
All of Chicago's wood-paved streets are long gone but two alleys remain.
Chicago, Illinois
At Chicago's revered Field Museum, visitors are invited to learn about and literally explore DNA.
Chicago, Illinois
A lush green oasis in the middle of Chicago.
Chicago, Illinois
A gothic church spire sits atop this skyscraper, the tallest church in the world.
Chicago, Illinois
This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.
Chicago, Illinois
Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.
Barcelona, Spain
The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.
Barcelona, Spain
Mountain where Jesus was first tempted by the Devil.
Paris, France
Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.