600 stumps, branches, and trunks of different shapes and sizes.

Tiny communists hammer away on the Olomouc Astronomical Clock.

A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

Throughout this shopping mall are medieval ruins that were discovered during the mall's construction.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

A massive 1830s industrial site once known as Czechia's "Iron Heart" has been transformed into a playground of science, technology, and art.

The mystery of the Putim Ossuary involves a tricorn hat.

Enormous sandstone towers loom within a Czech forest.

This fortress was designed to prevent a Nazi invasion but was never used.

Tall columns of volcanic basalt make up this improbable-seeming rock formation.

Artistic tombs, monuments, and a beautiful "Hall of Fame" lurk inside this cemetery.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

The industrial monstrosity known as Bagger 258 is a colossal mining machine built in the DDR - but now left for dead in a German field.

An underground city of salt.

The townhouse where the "Blood Countess" Elizabeth Báthory started her murderous career.

Vienna's underworld of tunnels and subterranean rivers made an iconic appearance in a 1949 Orson Welles film.

A silly medieval mural preserved on the side of a Viennese house.

This museum promotes informed contraception by documenting its often secret past.

The resting place for anonymous victims of the Danube's dark waters.

Built to give thanks for the passing of a plague epidemic, this cathedral is a one-of-a-kind architectural hybrid.

The final resting place for the remains of 143 Habsburg royalty.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

Mummified monks and the accidentally interred, in a 17th-century crypt.