A quirky Poe-themed joint on an island keen to celebrate its overlooked connection to the famous writer.

The propeller from the first steamship launched on Lake Tanganyika.

The only National Monument ever to go missing for nearly 50 years then resurface in a dump.

Artifacts showcasing the witchy history of Zambia.

A gorgeous gem on the ocean.

Where hundreds of Japanese civilians committed suicide to avoid being captured by American soldiers during WWII.

The underground hideout of a Japanese soldier for whom World War II ended in 1972.

A winding district gerrymandered into the shape of a mantis.

Soldiers were buried next to Lee's house in the center of Arlington Cemetery to dissuade the general from reclaiming his property after the war.

At 207 feet, one of the world's longest continuous escalators.

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

Scattered throughout London are ancient remnants of the city's former bounding wall.

The final resting place of soldiers' loyal canine companions.

A six-ton wedding present for the King of the Scots.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

A building so large that it has its own weather.

Giant acorn-shaped 19th century gazebo from which suburban Washingtonians gazed upon the original "silver" spring.

The only Civil War battle in Washington D.C. took place near this highest natural point in the city.

An obscure federal monument honors the French diplomat who served as Ambassador to the U.S. during WWI.

A Civil War fort in the middle of Washington, D.C. has been swallowed by a forest.

Enormous piles of historically significant stones, dumped by Congress in a forest, and abandoned for 60 years.

The Corinthian columns that towered over Abraham Lincoln’s inauguration stand proud.

An original apothecary from 1792.

A former major munitions plant that has been converted into a sprawling art space.