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

An imposing Omani fortress surrounded by date palm trees.

The world’s largest LED display, built over an F1 race circuit.

Claude Monet was baptized in this lavishly ornate Paris church.

This innocuous-seeming building is actually the remnant of a major wartime brothel.

This ruined castle perched atop a rocky peak is a great place for a hike.

This Gothic church was wheeled in its entirety to a new location a half a mile away.

Macabre astrological automaton clock dating to the late 1400s.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

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

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

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

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

A breathtaking viewing platform over the Alps.

A mechanical clock built in 1914, with a rotation of 12 historical figures on its face.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

Baroque celebration of the end of the Great Plague of Vienna.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

Dedicated to this region's early settlements and rich history of salt mining.

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

A Swiss amusement park entirely dedicated to the theory of ancient astronauts.