Launched by Napoleon's soldiers more than 200 years ago, a cannonball remains embedded in the tower wall.

A sculpture of a beloved local figure, who tipped his top hat to everyone he passed on the streets of Bratislava.

Vienna's giant wonder wheel had a starring role in one of the greatest noir movies of all time.

The beautiful, ornate weather station is the most popular geocache in Salzburg.

This lurid German fountain plots the sad course of marriage from dating to death.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

A small but immensely extravagant palace built by the "Night King."

This massive statue is the personification of Bavaria and the first colossal statue of the modern period composed of bronze.

A fearsome dragon clings to a corner of Munich's city hall.

The patron saint of spinsters grasps a container of dried blood.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

Some of New York's best tacos can be found in the back of an unassuming bodega in Queens.

A brutalist gem towering over the heart of Milan.

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

The secret medieval communication system will whisk your words above the noise of the crowd.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

This grisly effigy displays an early Christian martyr who was skinned alive and beheaded.

Old batteries and frog skeletons reside in this lakeside monument to Alessandro Volta.

This once luxurious Catskills resort is now a haunting ruin.

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

Dubbed the "Blade Runner dragon," this buzzing neon sign is a beloved local icon.

A downtown park built on top of unclaimed graves.

The last SR-71 ever constructed.

This historic graveyard was partially paved over to create a streetcar line.