An early-19th-century hotel with a past that is steeped in the Civil War.

Originally built to monitor fishing, this Victorian tower now educates visitors about the local salmon industry.

The oldest platform carousel built in the United States continues to delight children in Martha’s Vineyard.

A quiet nook at the top of a little-known hilltop park named after California's first poet laureate.

The buildings are among the few Frank Lloyd Wright structures still standing in Japan.

The first neighborhood to implement the Garden City model in its suburban planning.

Deep in the Guatemalan jungle stands an ancient pyramid that once marked the reign of a king.

This painted marvel is San Francisco's 400-foot ode to urban biking.

This contorting sculpture is the tallest in San Francisco.

This grinning pup statue is all that's left of what was once a ubiquitous Bay Area diner chain.

An allegedly haunted mansion with a tragic, tawdry past.

Staten Island's original central park is the former home of the city water supply as well as thousands of immigrant graves.

Imagine having a street run right through your home, or better yet, a historic bridge three stories high.

These subterranean models show Mexico City's central square during three different eras.

These century-old townhouses contain some of the first car garages built in the United States.

A 19th century hat factory still stands as a crumbling ruin in upstate New York.

This impressive working clock made of 16,000 plants changes its flowers twice a year.

This unusual subway stop was originally a real estate office.

A relic from a forgotten bakery chain still spins atop a diner.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

Buffalo's abandoned concrete grain elevators are getting a second life.

The world-record holder for the longest bridge stretching continuously over water.

Colorful clay cliffs tower over an unofficial nudist beach on Martha's Vineyard.

The fifth-longest natural arch in the world, and the longest outside China.