A plaque marks the spot where the saint was shoved off the Charles Bridge and into the river.

A unique memorial made up of a collection of memorials, all commemorating the Battle of Okinawa in World War II.

This modest marker near Notre Dame identifies the very center of Paris.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

A small marionette collection located within the dark cellars of an 11th-century Austrian castle.

Liechtenstein's royal family calls this medieval alpine castle home.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

The smaller of the three towers of San Marino is a former prison inaccessible from the ground level.

Breathtaking and huge 430 year old maps of Italy.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

Ecuador's largest Incan ruins show evidence of sophisticated irrigation and diplomacy among the ancient builders.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

A musical instrument played by the sea.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

One of the tallest bell towers in Italy plays a particular melody at just two times each day.

Get past the gatekeeper's apartment and enter an elaborate hoax of a restaurant with a Masonic feel.

The last king of Poland was interred in this church nearly 200 years after his death.

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

Stockholm's tiniest statue is of a small boy looking at the Moon.

This extinct volcano rises above Edinburgh and is special for its panoramic views over the city.

Inscribed on the gate are the names of 29 figures from the University's first five centuries.

A 200-year-old collection of oddities and medical paraphernalia.

This emblematic representation is said to bring the students good fortune.