Viator Exclusive: Early Access to Stonehenge with an Astronomer Guide. Gain early access to Stonehenge on a tour with a professional astronomer who sheds light on the UNESCO World Heritage site and its mystery — it’s a Viator Exclusive available nowhere else. Avoid the crowds by visiting the prehistoric monument in the morning, allowing you to take advantage of great photo ops without the masses. As you stroll around Stonehenge, you’ll learn all about the stone circle, a mystical marvel of ancient architecture. Book and Save 20% Off Viator Exclusive: Early Access to Stonehenge with an Astronomer Guide.

Get the most out of London on this full-day tour, which hits the best of the English capital — you can't book this Viator Exclusive anywhere else. Visit St Paul’s Cathedral and the Tower of London, watch the Changing of the Guard, and be led through the British Museum. Learn about the history of London and the sights you visit, and end the day with a much better understanding of the English metropolis. Numbers are limited to 15, ensuring a small-group experience. Book and Save 20% Off Viator Exclusive: Small-Group London Sightseeing Tour Including Guided British Museum Visit, St Paul's Cathedral and Tower of London.

Toledo Half-Day or Full-Day Trip from Madrid. Travel from Madrid to Toledo, a national monument to Spain's art and history, and discover a treasure trove of El Greco artworks. Experience Toledo’s past on a guided walk along cobblestone alleyways, and explore this World Heritage-listed city’s medieval architecture and fortified city walls. As Toledo is on Madrid’s doorstep, you can easily take a Toledo tour in the morning or afternoon, or explore in-depth on a Toledo day trip. Book now and Save 10% Off Toledo Half-Day or Full-Day Trip from Madrid.

El Escorial Monastery and the Valley of the Fallen from Madrid. Experience the grandeur of Spain on a guided half-day visit to El Escorial monastery and the Valley of the Fallen monument from Madrid. Discover why the Baroque-style El Escorial complex was considered the eighth wonder of the world, and admire the poignant sculptures of the Valley of the Fallen monument, erected in memory of the millions who died in the Spanish Civil War. You’ll gain insights into Spain's intriguing history at these symbolic monuments, reflecting the Spanish monarchy, church and 20th-century conflict, and have the option to include a half-day city tour of the highlights of Madrid. Book and Save 10% Off El Escorial Monastery and the Valley of the Fallen from Madrid.

Montserrat Monastery Tour from Barcelona Including Cog-Wheel Train Ride. Visit Santa Maria de Montserrat, one of Spain’s most important pilgrimage sites, on this 4.5-hour tour from Barcelona. With an expert guide, enjoy a panoramic cog-wheel train ride up the majestic Montserrat mountain, and take in gorgeous views of Barcelona and Catalonia, as well as the mountain’s incredible rock formations. Then, explore the Benedictine Santa Maria de Montserrat abbey and visit the Royal Basilica of Montserrat to see the famous 12th-century carving Our Lady of Montserrat, also known as La Moreneta (the Dark One). Book and Save 10% Off Montserrat Monastery Tour from Barcelona Including Cog-Wheel Train Ride.