A massive, abstract lookout tower providing a panoramic view of Prague.

A crucified and bearded female saint.

The oldest garden in Prague, once part of an medieval orchard.

A quasi-futuristic roof sits atop a medieval Bohemian monastery damaged during World War II.

This room of wonder is full of relics, from knights in armor to rare works of art.

This memorial is dedicated to a once popular but now defunct discount Shrewsbury department store.

Blending modern art with Baroque architecture, this wondrous mosaic grotto serves as the late artist's final creation.

Visit the grave of a famous feminist author and the mother of Mary Shelley.

This mysterious pyramid is said to be part of a complex web of occult and Freemason symbols.

A jumble of concrete on the corner of one of London’s terraced buildings is actually a work of art.

The oldest brick saltbox house in America.

The biggest apple in all of New England stands 10 feet tall and weighs over 1,000 pounds.

A stone from Africa's tallest peak is immortalized in a Potsdam palace—but is it actually the mountaintop?

Trimmings from the record-setting tree line that surrounds Cirencester Park have been used to manufacture chemotherapy drugs.

One of London’s rare Tudor-era buildings is a fate-defying gatehouse for a church.

This home designed for chocolate magnate Antoni Amatller is an exquisite treasure-box of Catalan Modernism.

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

A once-secret library of Freemason history in Catalonia.

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

A temple to modernity, tucked away amid Barcelona's more well known museums.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

This cemetery features modernist statues as strange as its name.

The oldest building in Madrid.