The unusual sculptures are believed to be powerful political symbols.

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

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

The silly symbol for an underground protest group is now scattered around the city.

At the very tippity-top of Europe is a cliff from which you can view the midnight sun.

This virtually windowless mass of smooth concrete is the only Catholic church in the city.

These historic defenses ensured the city within would survive hundreds of years of occupations, sieges, and invasions.

A curious cave church carved into the face of a cliff.

These temples are among the oldest free-standing stone buildings in the world.

This almost-forgotten underground dungeon housed several convicts over the years, including Caravaggio.

This unique building in the main square stands out among the city's typically Baroque architecture.

Overshadowed by other, more famous Maltese catacombs, this ancient burial chamber has one of the best examples of a ritual agape table.

These lesser-known Maltese catacombs date back over 1,700 years.

A centuries-old forgotten underworld lies beneath Malta.

The remains of a 1st-century aristocratic Roman town house featuring beautiful well-preserved mosaics.

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."

The Jesus tree of Malta bears a striking resemblance to Christ on the cross.

This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.

This subterranean necropolis holds three floors of antler-dug grave caves.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.

This Stone Age solar temple aligns with the sun on each equinox and solstice.

An abandoned set from the 1980 film "Popeye," claimed and repurposed as a theme park by creative locals.

The Adriatic's most famous wind can be reliably experienced in the city's Marina.

The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.