Plaques

This blue plaque commemorates the unexpected origin of one of the world's most beloved deserts.

This bronze marker acknowledges an embarrassing royal blunder.

A small collection of objects of a bygone era hide in plain view.

Presented to the city in 1910 for public use, these brass markers show varying lengths.

Above the door of a house, a plaque claims to commemorate the future living place of the inventor of time travel.

Along the pavement of this neighborhood in Madrid are quotes from famous authors.

In memory of the assassinated, now-canonized Salvadoran archbishop who is the namesake of nearby Romero Place.

Despite monuments in other locations, this spot in a South Dakota field is recognized by the U.S. National Geodetic Survey as the center of the 50 states.

Two of the most notable names in automobile history are commemorated at the place where they're said to have first met.

One of the world’s most powerful corporations was established on a random Albuquerque street corner.

Harry Houdini plunged into the Charles River and performed one of his escape acts here in 1908.

Twelve unique carved plaques across Humboldt tell a story of the ingenuity and bravery of ordinary citizens during the city's burning.

Quotes and poems etched on stone plaques are hidden along this waterfront walkway.

Dedicated to the neverending mathematical constant, this plaque next to a park bench was sponsored by an anonymous benefactor.

Where Kevin Eastman and Peter Laird created their "heroes in a half shell" and founded Mirage Studios.

Where a demonstration led to equal rights for one of California's most marginalized communities.

A monument to the King's final show, complete with a time capsule.

A dedication plaque on this Boston tunnel is a microcosm of a massive, controversy-laden construction project.