A small triangle of DC grass is the final resting place of one of Sonny and Cher's songs.

A celebrity from the late Cretaceous period.

A rotating cast of guys and dolls in front of a Washington, D.C. building.

A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

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

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

There's a 12-foot-tall replica of the Washington Monument hidden under a manhole nearby.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

The site of the climactic scene from the classic horror film is now a historic landmark.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

The last remaining example of the boatmen's perches that once dotted the south bank of the Thames.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

The lab where the scientist made his groundbreaking discoveries is preserved on the basement floor of the Faraday Museum.

The last four extravagant street signs of London's historic banking street.

The convergence of two currents makes this a surprisingly pleasant getaway in the Arctic Circle.

Norway has built what may be the world's most beautiful public toilet.

Hans Christian Andersen for the postmodern world.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

The comedy and tragedy of Oscar Wilde is preserved in a Dublin park, captured in a sculpture of colorful stone.

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

These bronze pamphlets remember a remarkable group of Germans who fearlessly opposed the Nazis in the very center of their power.