This massive solar system model is sprawled out across Maine's suburban wilderness.

This 19th century granite fortification is one of the most well preserved forts in New England.

The highest point in Maine is a grand gift to the state citizens that also happens to be one end of the Appalachian Trail.

The eccentric mansion of one the most popular horror authors of modern times.

This chilly Canadian hotel has a four-month lifespan due to the unusual material it's made of.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

A medieval replica of King Arthur's legendary table, the Round Table hanging in Winchester Castle was decorated by Henry VIII.

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

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

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

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

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

A statue honors the children who fought Nazis in Poland.

A tribute to the Polish insurgents who fought in the failed attempt to end their city's Nazi occupation.

The traditional Polish croissant, folded 81 times into the shape of a horseshoe, is a legally protected cultural treat.

A cluster of headless, armless sculptures looms within a popular Polish park.

These mechanical goats first battled it out in the year 1551, all because of an overcooked deer.

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

A sweet symbol marks the place where torturous executions were once carried out.

Protecting the dead from opportunistic body snatchers.

Recently restored menagerie of Victorian-era beasts.

A miniature Italianate fantasy village on the coast of Wales and the set of ITC classic "The Prisoner."

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.