This striking observation tower shaped like a spinnaker sail is the newest icon in historic Portsmouth.

The first piece of public art dedicated to LGBT rights.

An exercise in radical design and social living that became the epicenter of Soviet spy networks in London.

The housing complex served as an anti-fascist fortress during the Austrian Civil War.

Iceland's tribute to its thankless civil servants.

Rows of stone statues are dressed up to mourn children that are lost before birth.

The "lost friend” is the most famous of the six moai statues that were removed from Easter Island.

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

Travelers who fall victim to this mermaid's charms are destined to stay in Užupis forever.

This gem from the industrial age helps visitors and residents alike traverse hilly Stockholm.

These ornate arches show how the course of the River Thames has changed.

A sublime medieval path adorns the marble floor of one of the most beautiful Gothic cathedrals in France.

A collection of machines designed to break things for science.

The last resting place of the famous Native American princess is marked by a haunting monument.

A heated statue pays tribute to one of Sweden's great actresses.

Old ships and machinery fill a historic harbor in the city that's home to Europe's largest port.

A traditional American farmhouse plopped in the middle of a Piccadilly courtyard.

The historic home of the pivotal political activist who led the Métis people in rebellion against the Canadian government.

The final resting place of a German diplomat's beloved companion.

Fort Garry was a pivotal post for the Hudson’s Bay Company and a major factor in the economy and political culture of the area.

This geometric feat is a testament to the Incas' mesmerizing architectural abilities.

Situated on a sacred Inca site, this 16th-century cathedral took nearly 100 years to build.

Victorian-era Londoners really wanted to believe this 17th-century cistern was actually an ancient artifact.

This Parisian gem is one of the most incredible ethnographic museums in the world.