This golfball sized platinum iridium cylinder is the official starting point for all national weight calibrations
Archives: Atlas Obscuras
A Massive Entomology Collection in Genoa
The natural history museum has 4 million zoological, botanical, and geological specimens from all over the world.
The Fascinating Home of the National Archives of Estonia
The labyrinthine building is a brilliant blend of architecture, art, and history.
Harry Potter’s Grave
No, not that Harry Potter.
Cyprus Railways Museum
Discover Cyprus Railways Museum in Cyprus: This museum in a shuttered train station remembers the island's forgotten rail system.
The Ancient Windmills of Nashtifan
Discover Nashtifan Windmills in Nashtifan, Iran: The vertical-axis windmills of ancient Persia have been grinding flour for 1,000 years and counting.
Sculptured Rocks
This narrow canyon has been naturally carved by the river into spectacular and curious forms.
This May Be the Creepiest House in Oregon
The Temple of Oculus Anubis is a mysterious front gate that sends visitors' imaginations running wild.
French Prisoners of War Made These Model Ships Out of Bones
The collection is on display at the Channel Islands Maritime Museum.
The Owl Building
The Frost Bank Tower's architecture is a real hoot.
Fireworks Battle of Remedios
Discover Parrandas of Remedios in Remedios, Cuba: This Cuban town sets the sky on fire around Christmas each year.
Bristol’s Secret Underground Funicular
The abandoned Clifton Rocks Railway tunnel became a clandestine base for the BBC during World War II.
Old Japanese Jail
Discover Old Japanese Jail in Saipan, Northern Mariana Islands: This jail once controlled by the Japanese military now sits abandoned on a remote Pacific island.
The Ruins of a Medieval Castle Outside Barcelona
This beautiful abandoned castle is little-known even to locals in the city.
Utah’s Oldest Government Building
The only completed wing of the state's capitol is filled with artifacts and odd stories about its past.
The Prophet Samuel’s Tomb Is a Holy Site for Jews, Muslims, and Christians
The tomb is in a synagogue below a mosque built on the ruins of a Crusader-era church.
The Alaskan Street Where Each House Has an Airplane Hangar
This suburban street in Anchorage doubles as a runway.
The World’s Longest Minefield
A fortified sand wall lined with millions of landmines divides the contested territory of Western sahara.
The First Modern Skyway
The small passageway is also the highest skyway in the Twin Cities.
Alcoy and Maigmó Greenways
Discover Alcoy and Maigmó Greenways in Alcoi, Spain: A dictator's failed public works project is reborn as two linked trails through spectacular scenery.