The house where John Wilkes Booth conspired with his co-conspirators.

A historic estate packed with George Washington's heirlooms, and its own nuclear bunker.

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

Long-abandoned trolley tunnels just a mile away from the White House are turning into an art space.

Specimens collected by the author of "Lolita" and self-taught lepidopterist are exhibited in his childhood home.

Perhaps the tiniest sculpture in Saint Petersburg is a little bronze finch inspired by a song.

A scale model of Russia so big visitors are offered binoculars to rent so they can see the whole thing.

The past, present, and future of Russia's signature alcohol is remembered in the world's only museum dedicated to the starchy spirit.

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

The oldest museum in Russia is home to a fascinating collection of nearly two million anthropological artifacts and anatomical curiosities.

Palace where the nearly un-killable Rasputin was murdered.

Franciscan monks created a facsimile of the Holy Land for North Americans who couldn’t afford the trip overseas.

Before Nixon, "watergate" meant canals.

Behind an abandoned storefront is an example of pioneering 1930s gas station architecture.

A relic of FDR's brief foray into utopian urban planning.

The Forest Service's surprisingly sophisticated collection of wildfire prevention art features America's most beloved bear.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

Where dogs like the rare "Fire-Tailed Border Cocker" run free on the mountainside.

Costa Rican accommodation resembles a crash site, but with a nice balcony.

The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

The most decorated dog of World War I is preserved in the Smithsonian.

Perhaps the most scandalous statue of America's first president.

Politicians, bureaucrats, and military officers gathered in this field near the Capitol to settle their disputes with blood.