The Yangshan Quarry
03/31/2024

The Yangshan Quarry

The Yangshan Quarry is the site of an ancient limestone quarry, located to the east of Nanjing, China.

M Mark Milligan
The Kizil Caves
10/13/2023

The Kizil Caves

The Kizil Caves, also known as Kizilgaha or Kizilgaha Caves, are a set of Buddhist rock-cut caves located near the Kizil Township in Baicheng County, Xinjiang, China.

M Mark Milligan
Fort Drum – the Concrete Battleship
08/18/2023

Fort Drum – the Concrete Battleship

Fort Drum, nicknamed the "Concrete Battleship", is a fortified island situated at the mouth of Manila Bay in the Philippines.

M Mark Milligan
The Pyramid Tombs of Libya
04/10/2023

The Pyramid Tombs of Libya

Several pyramidal necropolises exist in Libya from the reign of the Garamantes, a kingdom that emerged as a major regional power in the Sahara during the mid-2nd century AD.

M Mark Milligan
Cave-in-Rock and America’s River Pirates
03/07/2023

Cave-in-Rock and America’s River Pirates

Cave-In-Rock, also known as Murrell's Cave and Potato Cave, is a 17-metre-wide riverside cave located in the town of Cave-in-Rock, State of Illinois, United States.

M Mark Milligan
Mother Shipton’s Cave
03/01/2023

Mother Shipton’s Cave

Mother Shipton’s Cave is a small cave in North Yorkshire, England, associated with the legendary soothsayer and prophetess, Mother Shipton.

M Mark Milligan
The Guyaju Caves
01/02/2023

The Guyaju Caves

The Guyaju Caves, also known as the Yanqing Ancient Cliff House, is a rock-cut complex of honeycomb caves carved into the slopes of the Tianhuang Mountain in the Yanging District of China.

M Mark Milligan