Museum of New Zealand (Te Papa Tongarewa)

The National Museum in Wellington is free in a great attraction. Thereare a variety of floors that explore different things including a great World War 1 exhibit that focuses on Gallipoli, as well as sites and artifacts from the Maoris, the natural and other historical features of New Zealand.

Army Museum (Museo del Ejercito)

Toledo's museum which tells Spain's military history from 1492 to the 1900s. Spain has a very famous military history and this museum certainly does it justice.

Real Maestranza de Caballería de Ronda (bullring)

Ronda is where modern bullfighting was born and this was the first purpose built ring (before that fights were using conducted in the main plazas. Even if you are morally opposed to the "sport" its part of Spain and the sight here is fascinating. There is an interesting museum and then you can wander out into he ring and salute your 5,000 fans.

Hồ Chí Minh City Museum of Fine Arts

The second-largest art museum in Vietnam (after the Vietnam National Museum of Fine Arts in Hanoi), the Hồ Chí Minh City Museum of Fine Arts isn't that impressive. It's located in a beautiful building designed by a French architect, but the collection isn't hugely interesting.

War Remnants Museum

Museum about the history of the Vietnam War. Outside the museum is a large collection of American military power: tanks, artillery, helicopters, and jets. The inside is mostly photos, with captions, as well as some short written accounts. Most of the exhibits depict atrocities committed by the American military or South Vietnamese army.

Cu Chi Tunnels

Initially created by communist forces fighting the French in the 1940s, the Cu Chi tunnels were expanded to a network of some 150 miles during the Vietnam war. Viet Cong soldiers used them as shelters, transportation and communications routes, hospitals, and food and weapons caches. Today, the tunnels are the site of a museum.

National Portrait Gallery

The National Portrait Gallery's focuses on portraits of famous Americans. Its most popular attraction is presidential portrait gallery, which has an entry for every U.S. president. While it's technically an art museum the National Portrait Gallery is also a history and biographical museum—you'll learn a lot about the people whose portraits hang in the gallery and the times in which they lived.

National Museum of Denmark (Nationalmuseet)

Denmark's National Museum is housed in an 18th century mansion and showcases exhibitions on Danish history and culture, beginning with the Stone Age and continuing through the Renaissance. The special exhibitions are often quite good as well.