A Harvard-area eatery preserves the uncovered tiles of its century-old predecessor.

The grand marble structure next to the White House is Andrew Carnegie's temple to Pan-American diplomacy.

One critic described it as "middle Mussolini, early Ramses, and late Neiman-Marcus." Another called it an architectural "natural disaster."

An overlooked memorial honoring the local Washington residents who died in World War I.

Fittingly, America's museum of architecture is itself a magnificently designed old building.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

This amazing collection includes rare stamps from around the world, including fluorescent ones.

The first patented shaved-ice machine heralded a snowy wonderland of iced treats at a favorite New Orleans summer shack.

Creating this diorama spurred naturalist Carl Akeley to begin advocating to protect the apes.

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

An ancient tunnel in Jerusalem built to redirect water in the event of a siege is one of history’s great architectural innovations.

Built on the remains of one the Incas’ most important gathering spots, this square keeps the spirit of a fallen empire alive.

This one-block alleyway is stuffed with street art that is colorful, cultural, and intensely political.

Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

This Parisian gem is one of the most incredible ethnographic museums in the world.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

The second oldest continuously operating bar in Louisiana.

This distinctive Crescent City tradition dates back to the days of horse-drawn carriages.

Once the site of a Native American harvest festival, this humble clearing later played an invaluable role in the birth of jazz.

Dioramas and animatronics lead you through the story of Bhagavad-gita, the Indian literary classic.

Home to secret Eastern Bloc spy equipment and the largest stretch of the original Berlin Wall outside of Germany.

A cult following celebrates the legend that belies this curious podiatrists' office sign which has worked its way into song, literature, animation, and the visual arts.

This stockpile of junked electronic and mechanical gadgets is a favorite among Hollywood prop masters.