A giant bisected onion dome remembers the Iraqis who died in the Iran-Iraq War.

A 605-page Quran penned in the blood of a dictator is locked away in a mosque.

9th century Abbasid mosque, damaged in modern warfare.

This lake in northwest Iran has started turning from green to red more frequently than scientists are comfortable with.

A bloody history is captured in this former prison turned museum.

Ancient rock-cut tomb? Definitely. That of a great Median king? Unlikely.

Qshla Koya is an Ottoman fortress located on a hillock in the central quarter of Koya.

The surviving pieces of an ancient aqueduct that may have fed into the lost Hanging Gardens of Babylon.

Barcelona's only remaining tram system takes riders to the Tibidabo funicular.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

This cafe offers a curated collection of treats and tipples made by monks and nuns.

A temple to modernity, tucked away amid Barcelona's more well known museums.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

Gaze upon chocolate sculptures depicting everything from chariot races to Gaudí's famous church at this shrine to sweets.

This cemetery features modernist statues as strange as its name.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Left by the Devil, an ancient quarry or just plain old erosion, this enigmatic rock pillar rises 28 feet from the hillside.

A spooky juxtaposition of caves and graves gives this legend-filled cemetery a particularly haunting vibe.

This tiny 1930s Art Deco airport is a beautiful remnant of a bygone era.

A motley, fantastical agglomeration of unlikely houseboats along the Shoreham-by-Sea riverbank.

This seemingly normal pathway actually forms a giant fingerprint.

These seaside shelters once enjoyed by royalty remain a part of local history.

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.