A daily replay of the experiment that proved the rotation of the Earth.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

This elaborate towering structure was once famed for its revolutionary height.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

At 207 feet, one of the world's longest continuous escalators.

These unusual rooms on wheels are holdovers from the 1960s.

The first patented shaved-ice machine heralded a snowy wonderland of iced treats at a favorite New Orleans summer shack.

This iconic high-rise residential block was one of the last to be built in the Brutalist style.

One of only two commuter aerial tramways in the United States.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.

A little sculpture with a large wardrobe.

Theme park featuring miniature replicas of European monuments.

After the construction of a nearby cathedral obstructed the view, the oldest belfry in Belgium was more than doubled in height.

The compass on its front was a handy tool for 17th-century merchants who needed to know the direction of the wind.

Warsaw's fantastically preserved gasworks...almost.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

Crosses of all shapes, sizes and colors litter the mountain, the site of a huge yearly Orthodox pilgrimage.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

Poland's oldest surviving university building holds a wealth of historic science instruments including some used by Copernicus.

Polish luminaries and masterful folk art find sanctuary in this unique cemetery.

A menacing statue of this mythical creature can be seen at the legendary site of the monster's lair.

Memorial to the lost dead of Gdansk, whose resting places were destroyed during World War II.

Legend says this is actually a heartbroken prince waiting for his true love's kiss.

This bell stars in a tragic love tale and is said to make wishes come true.