Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

Beneath an ancient wishing tree lies an underground chapel with 12th-century frescoes and catacombs dedicated to a lady saint.

The history and future of cannabis.

A public urinal so pretty, it was declared a national monument.

Although resembling a grand Buddhist temple, this structure is actually the largest mosque in China.

An ancient fortification lives on in this Chinese city.

Fake subway tiles were installed to cover a design that resembled the Confederate flag—it's unclear if the resemblance was intentional.

The East Village tenement from the cover of Led Zeppelin’s 1975 album has a tea shop on the ground floor.

Beautiful mosaics cover the first stations opened on New York City's newest subway line.

This Fifth Avenue church has long been the favored worshiping place of Broadway actors and vaudeville performers.

This outdoor gallery of graffiti-covered walls pays homage to the past, present, and possible future of street art.

Hordes of precariously balanced stone figures crowd the shores of the Hudson River.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

This mosaic dedicated to John Lennon was tended for years by a Beatles super-fan.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

One of only two commuter aerial tramways in the United States.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

Blitzkrieg bop your way through Berlin's Ramones Museum.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

This monumental work of art symbolizes the coming together of a previously divided city.

A memorial in the Tiergarten is a reminder of the suffering inflicted on homosexuals by the Nazi regime.

Metro station with a claim to rock n' roll fame.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.