Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

This sprawling concrete suburb of Kraków was designed by the Soviet Union as the model proletarian city.

Beneath Kraków Old Town's main square lies a hologram-filled medieval market vampire graveyard wonderland.

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

A mysterious emblem tucked in an small alleyway is actually the coat of arms of a heroic medieval family.

These rare statues are one of the few remaining material witnesses to Old Prussian culture.

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

The Guardian of Tallinn.

This Stockholm light tower can be controlled by anyone with a smartphone.

This massive, ancient stone was disassembled and then put back together again.

One of the largest underground systems runs under Canada's largest urban center.

Montreal's colorful subway station shows its support of the local LGBT+ community.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Welded sphere dropped from space.

There is only one place in the world where the corners of four nations come together.

A hollowed-out baobab that became the horrific final resting place of leprosy sufferers, with gruesome evidence to prove it.

When humans abandoned this safari lodge, the lions took over.

Réunion Island's highest point is a 2 million-year-old volcano and a paraglider's paradise.

An ancient temple to the Hindu god Shiva surrounded by jaw-dropping scenery.

The floor of the oldest surviving synagogue in the Americas is entirely covered in sand.

This volcanic cave lake is essentially hard proof that Iceland is the most magical place on Earth.

A bit of the Berlin Wall was gifted to the Icelandic capital to commemorate the 25th anniversary of German reunification.

This beautiful, historic church looks like something out of a simpler past.

This stunning concert hall has become a symbol of Iceland's national recovery.