What was once a true peninsula has now been filled in, causing the water to recede and leaving many streetside "waterfronts" and landlocked "islands."

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

A former waterfront market is now in the center of town due to some interesting Boston engineering.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

Large collection from the 3rd millennium BCE.

Baroque celebration of the end of the Great Plague of Vienna.

The most visited, and possibly most controversial, museum in Germany.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Ancient snack bar of the Roman Empire re-opened.

Pompeii's less famous neighbor is still revealing her secrets.

The once forbidden "secret cabinet" of erotic art from excavations of Pompeii and Herculaneum.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

Jesus' footprints and the first catacombs in the world.

2300-year-old Roman road connecting the empire.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.

Macabre astrological automaton clock dating to the late 1400s.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

One poet's handmade, anachronistic home.

Towering basalt columns, a creation of fire and ice.