One of the best collections of wax anatomical models in the world.

This 135-year-old weather station studied the effects of the climate on human health.

A wunderkammer of gold and silver reliquaries and ancient saintly bones.

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

A small but immensely extravagant palace built by the "Night King."

A series of playful yellow penguins share a serious message about the environment.

Steadily reminding Czechia of its past.

An existential riddle in the world's largest ancient castle.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

A mocking tribute to the past and modern leadership of Prague.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

These moss-covered medieval ruins tower atop the smallest of Ireland's Aran Islands.

The ruins of a medieval monastery named after a type of tree.

A stunning Victorian abbey and walled garden on a lakefront.

A sacred well steeped in Pagan roots on the West Coast of Ireland.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

Bold black and white motifs of life and death add a dramatic flair to this 17th-century crypt.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

A towering monument in Spain has proven to be more labor-intensive than initially planned.

The ruins of an ancient stadium that hosted gripping chariot and horse races.

One of the most spectacular bridges in Spain spans a narrow chasm that divides the city of Ronda.

Its appearance in "Game of Thrones" may spur on the long-awaited restoration of this medieval shipyard.

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