This 900-foot structure with 20 arches crossing a Scottish river was built in the late 19th century.

A reconstruction of a classic mansion on the island of Delos was designed for a historian and archaeologist.

A place to see how French aristocrats lived in the early 1900s.

This medieval castle was reconstructed by Carlo Scarpa.

This uniquely shaped rock formation is one of Scotland's most iconic mountains and gives spectacular views in all directions.

This poignant tribute to the White Rose movement showcases artifacts related to the heroic anti-Nazi struggle.

This inn of the court provides a fascinating window into London’s legal and architectural history.

The recurring nature of this geographic feature might make it unique in the world.

One of Belgrade's most beloved animals.

Not far from the more famous House of Juliet, visitors will find the supposed residence of her lover.

A memorial dedicated to a boating accident that was bringing troops back home from World War I.

A spectacular Petrine Baroque summer palace commissioned for Catherine I by Peter the Great.

It's believed that these columns marked the end of the Via Appia.

Built as a training camp, this site became a detainment center for prisoners of war and German civilians during World War I.

A small alleyway with an unusual moniker.

This historic timepiece was a popular meeting place for romantic rendezvous in the 1960s.

An ornate sculpture of an ox in repose marks the former entrance to Nuremberg's medieval meat market, which was destroyed during World War II.

This monumental fountain has moved around the city multiple times.

An enormous steel waterfall is a nod to the substance that shaped Britain's Steel City.

The largest oak in England is said to have been the hideout of Robin Hood and his Merry Men.

A seaside town with no sea in sight.

The last occupied troglodyte dwellings in England weren't abandoned until the 1960s.

Known as the "Stairway to Heaven," this historic canal dates back to the 1700s.

The obelisk honors the cyclist troops who were killed during World War I.