Tickets for Angkor Wat: Sunrise Guided Tour

The Sagrada Familia is the magnum opus of the famous Catalan architect Antoni Gaudí. The cathedral was the finale to his incredible Modernist career, and it has been under continuous construction since 1882. Over time, the so-called 'architect of God' dropped all his other work so that he could focus exclusively on this project, which he did until his untimely death in 1926. The Sagrada Familia is due to be finished in 2026, on the 100th anniversary of Gaudí's death. By that time, the construction of the Sagrada Familia will have taken 144 years.

Park Güell is Gaudí's fantasy-fuelled park in Carmel Hill, Barcelona. Walk amongst fantastic creations built in Gaudí's special brand of Catalan Modernism and enjoy panoramic views of Barcelona. Don't miss out on this quintessential Barcelona experience.

The Colosseum is a massive ancient amphitheater in the center of Rome. Picked apart by scavengers and ravaged by earthquakes and time, the Colosseum still stands as an impressive symbol of life in Ancient Rome. It showcases the power of past emperors and the durability of the Eternal City. This huge, marble and limestone structure was built to hold more than 50,000 spectators, all there to revel in the various forms of (mostly violent) entertainment, such as hunts, gladiator battles, and executions.

One of the world's largest and most authoritative museums, the Louvre's magnificent classical silhouette (and funky glass pyramid) are well-known attractions in the center of Paris. But as nice as the Louvre is from the outside, its real magic is in the inside. The Louvre's collection ranges from Mesopotamian, Egyptian, and Greek antiquities, with masterpieces by Da Vinci, Michelangelo, and Rembrandt. With 35,000 works of art (all created before 1848), it's a big, and worthwhile, commitment. The Louvre is one of Paris's Big Three museums; the other two are the Museé d'Orsay (with Impressionist and Post-Impressionist art from the years 1848-1914) and the Centre Pompidou (with 20th-century works created after 1914).

The Van Gogh Museum displays over 200 of Vincent van Gogh's works, including landscapes, still lifes and drawings, and letters. By displaying them alongside works from Van Gogh's contemporaries, viewers get real insights into his life and work. The museum itself is comprised of two buildings. The main building, designed by Gerrit Rietveld, Joan van Dillen, and J. van Tricht, opened in 1973. The second building, designed by Japanese architect Kisho Kurokawa was added in 1999. Located in Amsterdam's Museumplein (along with the Stedelijk and Rijksmuseum), the Van Gogh Museum is one of the most-visited museums in the Netherlands.

The Vatican Museums are full of artistic and historical treasures by some of the world's greatest artists. Inside you’ll find epoch-defining masterpieces from Michelangelo, Raphael, Leonardo da Vinci, Titian and Caravaggio (to name a few). The collection, housed in 54 galleries, includes the statue of Laocoön, the Apollo del Belvedere, the Gallery of Tapestries, the Gallery of Maps, and of course, the Sistine Chapel, with Michelangelo's renowned frescoes. The artwork here changed the course of Western art.

Housed in the stunning Beaux-Arts style Gare d'Orsay railway station, The Musée d'Orsay is home to significant and stunning works by painters including Gauguin, Monet, Manet, Degas, Renoir, Cézanne, and Van Gogh. It's widely considered to be one of the most culturally important museums in the world. Its entire collection is from the period 1848-1914, including many of the most significant Impressionist and post-Impressionist paintings ever created. Chronologically, the works come after those of the neighboring Louvre, and before the collection of the nearby Pompidou Centre.

The National Museum of the Netherlands, or the Rijksmuseum, has been housed on this location since 1885. It recently underwent a ten-year, €375 million renovation. The Rijksmuseum has over 5,000 paintings (including Rembrandt's Night Watch) and has an emphasis on the Dutch Golden Age. But it's not just paintings – there are sculptures, antiques, collections of clothing and weapons, and one of the finest actively-used libraries you'll ever see. The Dutch architect P.J.H. Cuypers designed this elegant building, and even put himself in the design as one of the statues on the roof.

Gaudí's masterpiece, Casa Batlló located in the heart of Barcelona, was built in 1877. In 1904, the wealthy Batlló family asked Gaudí to build another in its place. Instead, he decided to renovate the building and did so in his own inimitable style. With a wavy animalistic facade, brilliant colors, and thought-provoking whimsical features everywhere (check out the roof terrace), this is a Gaudí wonder.