This bakery and museum offers tours of the tastes and mythology of Aachen's signature spice biscuit—just don't ask for the recipe.

This 19th-century pub features stained-glass windows celebrating Victorian-era "champions."

Preserved portions of Athens's ancient defenses are on display in a subterranean parking garage.

The oldest standing Byzantine church in Athens is tucked within a monastery in the middle of an upscale shopping district.

Scars of this building's past life as a violent prison still cover its walls.

A crushed gate and giant bronze head serve as a reminder of Greece's fight for freedom.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

The ruins of an ancient Roman tomb hidden in the basement of a trendy clothing store.

An ancient octagonal weather station named for the eight Greek gods of wind.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

A faux European lane smack dab in downtown L.A.

Open for a weekend once a year around October it houses a fascinating collection of unique Victorian preserved and stuffed animals.

Plaques celebrating Lithuanian writers freckle a wall of this picture-perfect path.

The pockmarks across the building's facade are remnants of the Blitz.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

This centuries-old pub boasts a collection of more than 4,500 snippets of neckties from around the world.

Legend says these colorful, invasive residents are the descendants of birds released by Jimi Hendrix.

This giant roadside fruit is home to an array of apple-based treats.

One of the shortest streets in York has an especially odd name.

This network of narrow, medieval passages has the most delightful name.

Follow the original medieval paths that wind through this intriguing section of the city.

A century-old tradition has culminated in a small but singular collection of feline effigies.

The castle still holds traces of the abandoned Roman fort it was built atop.