This bronze sculpture was inspired by a photograph of Martin Luther King Jr. and his wife embracing after he won the Nobel Peace Prize.

The Boston square dedicated to the dark poet who was born nearby.

Mrs. Mallard and her brood are a beloved fixture in Boston Public Garden.

Statue commemorating the use of ether in anesthesia.

This historic sculpture from the 16th century is even older than the city of Boston.

The former locus of Boston's high culture has been shuttered and buried for over 70 years.

American revolutionaries and British soldiers alike are buried here in the fourth-ever cemetery in Boston.

A gift to the children of Boston, this bronze bear represents playfulness, a spirit of love, and the warmth of big hugs.

This historic Boston building has gone from personal estate to porn theater and back again.

Dim sum, served in a grand old theater.

The former site of an all-but-forgotten colonial landmark is now remembered by an often overlooked bas relief.

A pair of antique trolleys are on display at one of the oldest subway stations in the United States.

The classic Atari game's iconic aliens have invaded downtown San Diego.

This historic Chinese church was relocated and revived as a museum that preserves and celebrates Chinese art, history, and culture.

The oldest standing structure in downtown San Diego.

The Gaslamp District's oldest bar sports a urinal marked with a golden plaque that was allegedly used by Mick Jagger.

These two K-9 memorials commemorate the sister cities of Edinburgh and San Diego.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

This settlement on the original Transcontinental Railroad began by harvesting timber, but transitioned to a forgotten 19th-century industry: harvesting ice.

The museum is housed inside the historic 1863 Carson City Mint.

Historic home to one of the most famous women pioneers of the 19th century.

A shape-shifting buy-sell-trade bookstore, born to Beatnik Era spirit.

Built in 1906, this unique building was the first Hindu temple in the United States.

A brooding mansion of clinker brick stands out among the Victorian houses of Pacific Heights.