In the summer, the area around this sculpture transforms into a vibrant concert venue.

A tree planted by Marie Curie is treasured by the Radium institute that she set up.

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

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

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

After the famous composer died in Paris, his sister snuck his heart out of the country to honor his wish that it be buried in their native country.

Warsaw's fantastically preserved gasworks...almost.

Brought to you by the makers of fiberglass dinosaurs.

Dine amidst exotic plants at this former royal greenhouse.

Legends surround an ancient tree trunk riddled with nails for good luck.

A unique hotel for the artistic soul.

This quiet, unassuming spot in Budapest was the birthplace of the bloody 1956 Hungarian Revolution.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

A long-disputed lighthouse built on the wrong side of a Finnish/Swedish island.

Bohemian paradise covered in majestic forests.

This spooky statue sits outside a famous Prague theater.

This scale model of our solar system hid in plain sight for years before a physics team sought out all the planets.

Madrid's last horchata kiosk is a blue-and-white beacon of refreshment.

Sound travels strangely in this underground whispering gallery.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Venice's island of the dead.

The marble facade hides a little-known medical museum with early surgical instruments and rare copies of canonical texts.

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

100 year tradition of fist fights, marked by marble footsteps.