This medieval castle was reconstructed by Carlo Scarpa.

This Roman statue is missing a limb from when the Venetians stole it from Constantinople during the Crusades.

The only museum with its curator—and her pets—buried inside.

A sinister pyramid in the Frari contains the heart of the famous neoclassical sculptor.

This fortress dates back to the 6th century and is also the site of a controversial abandoned restoration project.

Its interior is adorned with some of the best examples of early Christian mosaics.

Art Nouveau painter Alphonse Mucha spent 18 years creating these monumental paintings of Slavic history and mythology.

Tiny communists hammer away on the Olomouc Astronomical Clock.

The sanctuary holds what was once believed to be the saint's incorruptible tongue.

An ornate plague column – built to celebrate life – claimed the lives of numerous artisans during its construction.

Unique house covered in a nightmarish mural of demons, ghosts and monsters.

The deepest sinkhole in Central Europe comes with a grisly tale and an unusual nickname: “The Stepmother Abyss.”

Enormous sandstone towers loom within a Czech forest.

A church of bones, decorated with 40,000 human skeletons.

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

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

A collection of anatomical samples from one of the first anthropologists to suggest that humans reached North America by crossing the Bering Strait.

Two stunning 17th-century libraries and a cabinet of curiosities.

This unassuming tree stump reportedly traces its roots to the famous pharaoh queen's reign.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

A network of concealed passageways lies within a busy London Underground station.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This bookstore serves recipes from the cookbooks on sale.

The bar where "The Great Train Robbery" was planned was once a nexus of high society and low morals.