Once a thriving business district, this former shopping area is now an urban ghost town in the heart of the city.

Walk through the history of American pop culture.

This simple convenience store sits on the location where the Ouija board was named—and has a plaque to prove it.

The childhood home of the Sultan of Swat is just a line drive away from Oriole Park at Camden Yards.

A monumental statue of RCA's mascot now sits atop a historical society roof after a life of moving around.

This lovely tree was a thank you gift from the man known as "Public Enemy No.1."

This beloved Baltimore spot features caged dolls, a giant Pez collection, and many, many mannequins.

The only public swimming pool in Baltimore open to Black Americans during segregation is now a permanent memorial art exhibit.

A miniature city within a city, complete with traffic signs, signals, and streets to teach Baltimore's youth traffic safety laws.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

The world's largest wooden structure.

The final resting place of the great navigator, or maybe his brother.

The world's most elegant power lines.

Red, white, and blue painted steps along with a Union Jack celebrate the outcome of Gibraltar's 1967 referendum.

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

Step inside the first house designed by Catalan architect Antoni Gaudí, considered to be one of the first Art Nouveau buildings.

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 fascinating and poignant museum chronicles every imaginable aspect of Spanish colonialism in the Americas.

Among the oldest structures in Madrid, these Moorish walls once guarded the medieval city of Mayrit.

For decades, Puerta del Sol has been illuminated by a giant, guitar-wielding bottle of sherry.

A stone slab in Madrid marks the point from which the distances of Spain's national roads are measured.

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

This London marker celebrates the spot where the world-famous English band was founded.