This man-made mound monument was built out of soil from all across the Polish empire.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

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

Real bones which are said to have belonged to a Polish dragon.

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

Special benches that play Chopin's music are scattered throughout his native city.

The giant statue and its model solar system honor the native Pole who declared that the Earth revolves around the Sun.

At night, this memorial illuminates a ghostly outline of a footbridge that connected two sections of the Warsaw Ghetto.

These plaques found across Warsaw commemorate the sites where executions or battles took place during the German occupation.

Once home to some 250,000 volumes and priceless art artifacts, this Polish estate was a target of bombing during World War II.

An enigmatic modern marker left next to a historic Roman site.

A wunderkammer of curious objects and intriguing art nestled within a hub of ancient Roman sites.

An ancient Egyptian obelisk is now used to commemorate fallen Italian soldiers.

This small church was constructed over the ruins of three temples dating to the Roman Republic.

An unremarkable wooden wheel built into the side of one of Rome's oldest hospitals was part of a policy to reduce infant exposure.

Believed to be the remains of the lost Temple of Minerva, this nymphaeum has been known by its misnomer to this day.

One of Rome's most picturesque and original bridges was also a popular choice for Grand Tour artists.

An ancient Roman temple first dedicated to an emperor's wife is now a church.

This ancient Roman arch misled treasure hunters for centuries.

The remains of this 2nd-century Roman temple are incorporated into a modern building.

These hut foundations are believed to be the residence of Romulus, founder of Rome.

A fortified medieval basilica on the Caelian Hill preserves extraordinary frescoes and one of Rome's most beautiful hidden cloisters.

This small, ancient Roman temple was once a church dedicated to the patron saint of penitents.

This ancient trail climbs the mountain where a Latin League cult worshipped Jupiter, its main deity.