America's Most Wanted's set resides in this tribute to the history of crime and punishment.

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

The trials and tribulations of marking Poe's grave.

The design of this historic domed church was influenced by Thomas Jefferson and intended as a statement of religious freedom.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

Hiroshima survivor on Riverside Drive.

For over 30 years the walls of this Harlem schoolyard have been a gallery of street art by "Kings and better."

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

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

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

A semi-scholarly approach to sex.

An artist's cute bronze subway sculptures belie his violent artistic past.

Try not to get slimed in Tribeca.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

Recently restored menagerie of Victorian-era beasts.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

The modern birthplace of Irish freedom.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Northern Ireland's Brobdingnagian stepping stones.

The ruins of this medieval castle in Northern Ireland have inspired artists from C.S. Lewis to Led Zeppelin.

The atmospheric road was never meant to be so creepy.

Dublin's "Dead Zoo" serves as a window to Victorian museum design.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.