Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

The meteor that sealed the fate of the dinosaurs landed at this site, one of the largest impact craters in the world.

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

The celebrated eyesore created by starry-eyed sweethearts.

A copy of the famous statue can be found in this Florence piazza, along with one of the most breathtaking views of the city below.

Secret refuge and museum of the Duke of Florence.

This private skyway is filled with art and was expanded explicitly so that Hitler could appreciate a river.

Legend has it that this bronze orb, which sat atop an ancient Egyptian obelisk, once held the ashes of Julius Caesar.

An 18th century fountain and two columns are all that remains of Rome's forgotten river harbor.

A treasure trove of Renaissance-era funerary art in a Roman church built on top of Nero's grave.

The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Considered one of the most haunted places in Europe, this 800-year-old castle was home to noble prisoners.

It's good luck to be mocked by this monkey.

Hundreds of enormous icebergs drift through this waterway every year.

An ancient Viking village in North America that predates Columbus by 500 years.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

An abandoned lighthouse awaits its destiny: being buried under shifting sand.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

A natural wonder in south Denmark.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

Old Danish castle immortalized in Shakespeare's Hamlet.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

An arresting temple full of mosaics as colorful as the politician they memorialize.