The official motto of Luxembourg reminds passersby of the Luxembourgish commitment to their national identity and sovereignty.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

Baroque celebration of the end of the Great Plague of Vienna.

A tunnel that brings more than a century of history to life from the deepest parts of the Niagara Gorge.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

A grand Gothic Revival basilica with stained glass depictions of Montreal's religious history has only one soul resting in its crypt.

Its columns were all carved from the same white oak tree.

Major tourist destination known for its bubbling mud-pools and hot thermal springs.

An immersive Māori village where you can learn history and heritage through dance, ceremony, song, architecture, and food.

High winds can make this one scary landing.

These mythological giants take time out of their busy day guarding a Victorian market to let you know what time it is.

A 19th-century perch for spotting sailing ships now boasts one of the most iconic views in the Southern Hemisphere.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

Lumps of significant stone from around the world surround a flaming monument for peace.

On the outskirts of Pennsylvania’s capital city, a reminder of the worst accident in U.S. commercial nuclear power plant history.

The last bastion of Roman presence north of the Alps looms over a German town.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

This unreal Portuguese palace looks as though it's made from a pile of different castles.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Eat the ultimate iteration of Portugal's most beloved pastry.

A curious carving hides on a marble column in the Mosque-Cathedral of Córdoba.