A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

A hands-off space for graffiti artists to hone and display their skills.

An architectural oddity hides in plain sight on this iconic London bridge.

A magnificent waterfall is also home to the remains of a Roman hydraulic engineering system.

A quirky bookstore hidden beneath a sea of whitewashed Greek villas.

This black sand beach was crafted from volcanic explosions including the historic Minoan eruption.

Ancient serpentine sacrifice holder that has stood the test of time.

A gorgeous, Gaudí-esque stairway constructed in the city of Istanbul by a prominent Jewish family.

Legend says if you stick your thumb in the hole and it gets wet your wish will be granted.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

The ornate miniature mansions were built for Istanbul's feathered residents.

A meow-velous tribute to a beloved street cat, made famous on the internet.

A serene temple with stunning stained glass hides in downtown Dallas.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A colorful, century-old cemetery of the Yaqui Indian Tribe hidden amid the suburban sprawl of Tempe, Arizona.

Deep into the lower floors of Pike Place, find a date with fowl fate.

This working class sculpture pounds his hammer all the livelong day.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

An old-timey peepshow allows visitors to gawk at some of the world's most freakishly large footwear.

Old 'Nutcracker' sculptures from 'Where the Wild Things Are' author found new life as a seasonal attraction.

A giant Troll lurks under one of Seattle's oldest bridges.

A 30-mile-long glacially-carved canyon leads to a massive pair of glaciers.

A whale of a public art display towers atop Juneau's cruise ship dock.