Former historic palace housing huge art collection, from Roman sculptures to da Vinci's "Mona Lisa."

Iconic triumphal arch built to commemorate Napoleon's victories, with an observation deck.

Multiple galleries of classical & Renaissance art masterpieces, plus the Sistine Chapel frescoes.

18th-century summer palace with tours of lavish rococo ceremonial rooms, plus gardens with a maze.

Park bringing Indonesian culture & nature to life via museums, gardens & replicas of famed sights.

Immense, 18th-century palace with gilded apartments, chandeliered Hall of Mirrors & fountain show.

Fortified hilltop castle, initiated in the 14th century & prettified in a variety of later styles.

Medieval complex housing palaces, carved Moorish throne room & cloistered courtyards with fountains.

Art museum with Velazquez, Goya and El Greco masterpieces in vast 12th- to 19th-century collection.

Vast excavated area of Roman temples, squares & government buildings, some dating back 2,000 years.

High profile exhibition, fair & congress center opened in 1939 with halls for up to 500 people

Huge, opulent 15th-century palace, occupied by sultans for 400 years, housing Ottoman treasures.

Major 19th- & 20th-century European art collections housed in a monumental, former railway station.

Vast, constantly expanding model railway exhibit based on famous global sites, with guided tours.

Gaudi's Catalan art nouveau period building with quarrylike facade, hosting exhibitions & concerts.

Dramatic, 14th-century castle, former royal residence & alleged legend of Count Dracula inspiration.

19th-century building housing Dutch Golden Age painting masterpieces & vast European art collection.

Iconic building housing one of Latin America's most important collections of renowned art.

Circular, 2nd-century castle housing furniture & paintings collections in Renaissance apartments.

19th-century, Romanticist palace on a high rock & former monastery site, surrounded by parkland.

Museum housing the world's largest collection of Van Gogh paintings, alongside drawings & letters.

The palaces of 11 separate rulers sit together in this sprawling complex that was started in 1559.

Waterfront applied science museum exploring humanity's future challenges & opportunities.

Modern royal palace modeled on Windsor Castle offering tours, outdoor concerts & an amusement park.

Interactive garden with a maze & children's play equipment at a landmark science & tech museum.

Revered castle dating to 1597 & since rebuilt, featuring gardens & a museum with varied exhibits.

182-m. statue of legendary activist & politician Sardar Vallabhbhai Patel created by Ram V. Sutar.

Gleaming titanium and glass museum, designed by Frank Gehry, housing major 20th-century artworks.

Stanisław August's collections of paintings, drawings, sculpture & coins in lakeside palace.

Famous chapel in the Vatican Museums, best known for Michelangelo's 16th-century painted ceiling.

A grand setting for one of the world's greatest collections of art, from ancient to contemporary.

16th-century building housing vast collection of Primitive & Renaissance paintings & masterpieces.

Plaza, pools & exhibits honoring victims of 1993 & 2001 WTC terrorist attacks. Free timed admission.

This huge, fortress-like palace served as a residence for a Roman emperor & the military garrison.

Elegant, domed, white marble museum, opened in 1921, housing displays on the history of Kolkata.

Popular anthropology museum showcasing artifacts from as far back as the ancient Maya civilization.

Baroque, 18th-century palaces housing art from Middle Ages to today, with notable Klimt collection.

Gothic-style 1300s house and museum, with a stone balcony, said to have inspired Shakespeare.

This historic hilltop castle with views of Mexico City houses the National Museum of History.

Archaeological site of the remains of the iconic Roman city preserved by Vesuvius' ash.

Museum chain for life-size wax replicas of famous celebrities & historic icons in themed galleries.

14th-century Teutonic castle housing museum of medieval artifacts, paintings & an amber collection.

Ultramodern glass & steel museum housing ancient artifacts from the Acropolis archaeological site.

Compact museum devoted to sand art, housing several intricate sculptures.

Seafront museum complex in former royal palace surrounded by parkland known for its many fountains.

Former art collection of the Salar Jung family from around the world, now a museum.

A vast treasury of science & invention, famous for its state-of-the-art interactive exhibits.

Neo-Renaissance residence of King Carol I with a museum of national heritage artifacts.

Museum house where Anne Frank & her family hid from the Nazis in a secret annex, during WWII.

Built circa 1460, one of India's largest forts offers a lift & galleries, plus guided tours & shops.