Billed as the "largest natural flower garden in the world" this Middle Eastern show field has little competition at 45 million flowers.

This bazaar is one of the oldest in the Arabian world.

Scotland's oldest medieval bridge is also among the last reminders of early medieval Aberdeen.

The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

Possibly the oldest living thing in Europe, more likely a pagan survivor.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

One man spent 10 years building a spectacular section of road because no one else would.

These fantastically named natural pools look like something out of a Scottish myth.

The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

Sleep in a climate-controlled plastic bubble for the night.

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

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

The great Danube river starts here.

A striking 12th-century-style castle built on the edge of a cliff.

Traversing steep Alpine slopes, this engineering marvel is one of the longest and highest funiculars in the world.

The mummified relic of St. Catherine sits forever on a golden throne.

A diverse collection of wax, bone, papier-maché and mummified relics.

This centuries-old Italian chapel hangs midway down a sheer cliffside.

This winding road through an Italian canyon may be the most scenic drive in the world.

A cherry tree growing atop a mulberry tree.

An ancient artistic garden parlor full of hidden water wonders.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.