Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

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

Swedish skyscraper with a 90° twist.

The design of this beautifully crafted building was inspired by Norwegian glaciers.

One of the most breathtaking railways in Europe also takes one of the steepest climbs, from fjord to mountain plateau.

An intricately carved Viking church overlooks a glistening fjord.

The only monument to name all of the passengers and crew who died on the RMS Titanic.

A museum marks and documents the site of the Titanic's launch.

Northern Ireland's Brobdingnagian stepping stones.

The "Little Ones," show Portugal in full miniature splendor.

You can cross from one country to another in a single hop on this little bridge.

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.

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

Breathtaking and huge 430 year old maps of Italy.

The mouldering manses of wealthy colonials still pock the streets of a Curaçao neighborhood.

This massive statue is the personification of Bavaria and the first colossal statue of the modern period composed of bronze.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

This cemetery overlooking the Benbulben rock formation is the final resting place of one of Ireland's most beloved poets.

An outstanding and haunting glimpse of the horrors of the Great Famine of Ireland.