Start the morning with a tour to the spectacular Keukenhof Gardens, one of Holland's top attractions, then head back to Amsterdam to glide down the Amstel River in a traditional canal boat. Finally, explore the Van Gogh Museum which contains the largest collection of paintings by Vincent van Gogh in the world. You'll see the best of Amsterdam's culture and sights in one day and even better, enjoy a 20% discount when you buy these three tours i

Be transported to the outer reaches of the Universe on a visit to Chicago's Adler Planetarium and Astronomy Museum, the first planetarium in the United States. Since 1930 the country's oldest planetarium has been delighting audiences with the spectacle of the night sky. Visit Deep Space Adventure, Atwood Sphere Experience, Shoot for the Moon exhibit and choose from a range of Sky Shows in Grainger Sky Theater, Definiti Space Theater and 3D Uni

Both educational and entertaining, The American Museum of Natural History is a real hit with with adults and children alike. Add this popular Manhattan attraction to your New York itinerary for a day of family fun.

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The Barcelona ARQUEOticket allows you to visit great 5 museums to travel back into the past and a greater understanding of the present. Where can the most exclusive jewelery in Barcelona be found? At The Archaeology Museum of Catalonia, where you will see surprisingly modern necklaces which were used as ornaments in pre-history. You can also see the very latest in Greek and Roman earrings.

Visit the Art Gallery of New South Wales to see the gallery's latest exhibition then enjoy High Tea at the award-winning Gallery Restaurant with views overlooking Sydney Harbour. This changing program of exhibitions is your chance to view and appreciate important art from Australia and around the world. You'll receive entry to the exhibition of your choice and High Tea at the Gallery Restaurant including a glass of sparkling wine.

Leave Krakow for a morning or afternoon to visit the UNESCO-listed Auschwitz-Birkenau Museum. This sobering half-day trip will have a lasting impact, commemorating the lives of those who died in the extermination camps during the Holocaust of World War II.