The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

This bike path was sunk below water level for maximum wonder.

A 14th-century fortified keep showcases the masterpieces of an ingenious 20th-century clockmaker.

Two bulls enter. One leaves a champion—but neither loses its life.

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

At almost 900 feet long, this is Bulgaria's longest suspension bridge and the only way to reach the small village of Lisitsite.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

The longest trolleybus route in the world, from Simferopol and Yalta.

This vineyard was the site of the infamous Charge of the Light Brigade.

A castle perched precariously over the Crimean Sea.

One of the windiest peaks in Crimea is home to an incredible set of cable bridges.

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

An ethereal glowing blue ocean cave in Croatia.

A musical instrument played by the sea.

This 700-year-old Cyprus castle is the birthplace of the world's oldest wine, said to be toasted by Richard the Lionheart at his wedding.

Breathtaking Byzantine paintings cover the inside of this 12th-century church.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

Tiny communists hammer away on the Olomouc Astronomical Clock.

This doorless 20th-century elevator doesn't stop or slow down.

A bust of Franz Kafka spins in pieces, reflecting the writer's inner torment.

A Jenga-style cylindrical tower of books that appears to go on forever.

Two stunning 17th-century libraries and a cabinet of curiosities.

Old Danish castle immortalized in Shakespeare's Hamlet.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.