One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

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

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

This seemingly out-of-place gas station by the Watergate hotel was once described as the most expensive gas station in the world.

Decades before the scandal, this staircase on the river was a literal "water gate."

A historic arena where the Beatles played their first concert in the U.S.

An atomic bomb-proof strongbox protects the U.S. Constitution from terrorists and thieves.

The beloved statue at the National Academy of Sciences is oh so inviting to sit on.

This imposing Masonic temple a mile from the White House was the first public library in Washington, D.C.

A haunting tribute to pioneering photographer Clover Adams.

This grand gothic brewery has been pumping out suds for over a hundred years.

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

Gargantuan home of Russian science.

Stalinist skyscraper built with help of cryotechnology.

The tallest hotel in Europe.

World's largest bell sits on the grounds of the Kremlin in Moscow.

A sculpture park of the tossed aside relics of the USSR, from Stalin to a massive Soviet emblem.

Moscow's most popular cemetery includes the graves of numerous cosmonauts.

Former headquarters of the KGB.

Dr. Strangelove-esque tours reveal the inside a bunker once reserved for Stalin himself.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

A hot dog stand where the heads are just as hot as the dogs.

An historic and oft-filmed spot for musclebound iron pumpers on the Pacific coast.