A madman's personal garden filled with 1,000 sculpted heads.

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

This amazingly preserved Doric temple was abandoned before it was ever completed.

This triumphal 16th-century arched gateway leads to the oldest street in Palermo.

Why a column on the entrance is inscribed with a verse from the Quran is one of Sicily's many mysteries.

A study of Fascist era Art Deco design in Italy.

An abandoned shopping gallery built during Fascist Italy tucked in the center of Palermo.

This home of a taxidermy hoarder is among the grandest and most singular of historic English estates.

A late 18th-century jail.

This charming English house was once the home of England's most famous poet.

This network of narrow, medieval passages has the most delightful name.

These 90-year-old murals of local kings, Vikings, and outlaws hide in plain sight in a beautifully baroque shopping arcade.

A 15th-century former coaching inn forms the implausibly grand entrance to a 1980s shopping mall.

The oldest inn in England served brew to the crusaders.

The English Civil War began right here in 1642.

Largely overlooked, this little fountain on Museum Island is a whimsical tribute to a Prussian king nicknamed the “Fatty Flounder.”

This obscene artwork on the side of a newspaper office pokes fun at a rival paper's former editor-in-chief.

An imperial church bombed to ruins during WWII now stands as a jagged memorial.

Reminders of the Battle of Berlin still scar the railway.

This platform is now a memorial dedicated to those who were deported during the Holocaust.

An abandoned NSA listening post on Berlin's "Devil's Mountain."

After local authorities changed the design, the building's architect, Le Corbusier, wanted nothing to do with it.

Cold war icon and onetime "hole" in the iron curtain.

A haunting contrast of trains that both saved and took the lives of Jewish children in Nazi Germany.