Go inside to really appreciate this 500-year-old technological masterpiece.

A small square plaque marks a failed assassination attempt that could have changed history.

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

Golden cobblestones remember a time when this small alley was used to avoid having to give a Nazi salute.

The footprint of a frustrated devil in Munich's Cathedral.

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

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

This life-size replica of the Statue of Liberty's flame is also a tribute to Princess Diana by default.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

Over 60 chemical plants and oil refineries sit in a 15-mile-wide section outside town.

This giant roadside goose has been hailing travelers into a small Ontario town for over 50 years.

This seemingly cursed monument is dedicated to one of Canada's great war heroes.

A sprawling Victorian farm that has been surrounded by a capital city is one of Canada's greatest treasures.

The statue of the famous elephant who was the original source of the word "jumbo".

The mastermind behind this palatial hotel perished on the Titanic weeks before its grand opening.

One of the largest underground systems runs under Canada's largest urban center.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

Louise Bourgeois' 30-foot-tall steel spider sculpture.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.