The ancient necropolis houses the immense rock-cut tombs of four Persian kings.

Marked by the hand of the explorer Henry Morton Stanley.

The palace of the King of Kings, burned by Alexander the Great.

Long before air conditioning, Persian architects found an ingenious way to cool off.

The fire inside this temple has burned for more than 1,500 years.

The cathedral stands in New Jufa, Isfahan's Armenian quarter that was established in 1606.

This 17th-century structure is a beautiful testimony to traditional Persian architecture

17th century mosque for Shah Abbas' harem.

A historic trade hub teeming with gorgeous architecture, colorful goods, and vibrant designs.

Thrilling and delicious complement to any dining experience.

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

According to legend, this tomb holds the secrets to time travel.

This artistic fountain display pays homage to this area's theatrical history.

Along the Rhine, about a mile from the historic Munster, learn the heartrending story of two lovers torn asunder, cast into unknown layers of time and space.

An interactive exhibition space dedicated to the kinetic sculptures of Swiss artist Jean Tinguely.

An unassuming Swiss institution houses Europe's largest toy museum.

One of the world's largest collections of pharmaceutical artifacts.

The smallest museum in Basel, Switzerland, is a two-foot-by-two-foot window in the door of a 600-year-old house.

The bears of Bern have been a city highlight for over 500 years.

The Swiss artist's bulbous and overgrown shape-shifting sculpture controversially graces the center of Bern.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

This unique preservation is one of the only taxidermies in the world made with real whale skin.

Its vast collection of wondrous gadgets details the fascinating history of information technology.

A bronze statue commemorating his royal meowjesty, Toulouse.