Hear the quietest sound from across the dome.

Abandoned Soviet base once stocked with short and medium range missiles pointed at western Europe.

This old KLM airplane cut into three parts was transformed into an eclectic airport gift shop.

This striking memorial is one of Estonia’s most controversial Soviet leftovers.

Alexander Hamilton’s creation caused quite a bit of controversy.

America’s smallest national park site is the former residence of exiled Polish national hero Thaddeus Kosciuszko.

A staircase made of gravestones leads up to this church built into a giant rock.

An 11th-century runestone decorates the halls of Terminal 2 of this Scandinavian travel hub.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

This abandoned, partly demolished building is now home to beautiful graffiti and murals.

A natural dome made of volcanic glass in Inyo National Forest.

A serene plaza that commemorates one of the Granite State's most iconic figures.

This amazing ancient cave was kept secret for seven years to protect it from the public.

A plaque pays tribute to the artist's longtime London home.

Along this stretch of Indiana roadway resides a giant insect composed entirely of scrap metal.

A magician and his beloved, pampered canine were buried together, within days of each other, due to a tragic twist of fate.

The defensive tower was built centuries ago to warn locals of Berber pirate attacks.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

A former imperial sea-fortress and Soviet prison.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.

If you visit Santa's village, you can get your passport stamped to show you crossed into the Arctic Circle.

This abandoned neighborhood is now a park filled with beautiful trees, wildflowers, and hints of its past.

A statue of the Soviet leader still stands in a quiet corner of Estonia’s most Russian city.

This impressively large collection includes crackers shaped like Jimmy Carter, Mickey Mouse, and more.