Abandoned Donner Pass Tunnels

Discover Donner Pass Summit Tunnels in Truckee, California: The now-abandoned tunnels were built for the transcontinental railroad on the route where the first wagon train entered California.

Hickam Air Base Scars

Discover Hickam Air Base Scars in Joint Base Pearl Harbor-Hickam, Hawaii: The air force base preserves its scars from the Japanese attack on Pearl Harbor.

The Ancient Temple of Segesta

Discover Temple of Segesta in Calatafimi, Italy: This amazingly preserved Doric temple was abandoned before it was ever completed.

Archaeological Museum of Alicante (MARQ)

Discover Archaeological Museum of Alicante (MARQ) in Alicante, Spain: Fascinating exhibits of prehistoric and ancient artifacts displayed with a uniquely modern touch.

Cava Museo

Discover Cava Museo in Carrara, Italy: Explore the quarry where the marble was sourced for Michaelangelo's David.

The Undamaged Red Post Box

Discover The Undamaged Red Post Box in Manchester, England: The small bright red pillar survived the 1996 Manchester bombing virtually unscathed.

Rajaram Meghwal Burial Place

Discover Rajaram Meghwal Burial Place in Jodhpur, India: Legend has it a commoner volunteered to be buried alive in the foundation so that the great fortress could be built.

Infinity Climber

Discover Infinity Climber in Jersey City, New Jersey: A playground inspired by differential calculus dangles from the ceiling of the Liberty Science Center.

Paulinskill Viaduct

Discover Paulinskill Viaduct in Columbia, New Jersey: Once the world's largest reinforced concrete structure, this abandoned bridge now beckons urban explorers.

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i
To represent a masterpiece of human creative genius.
260
ii
To exhibit an important interchange of human values, over a span of time or within a cultural area of the world, on developments in architecture or technology, monumental arts, town-planning or landscape design.
474
iii
To bear a unique or at least exceptional testimony to a cultural tradition or to a civilization which is living or which has disappeared.
499
iv
To be an outstanding example of a type of building, architectural or technological ensemble or landscape which illustrates (a) significant stage(s) in human history.
633
ix
To be outstanding examples representing significant on-going ecological and biological processes in the evolution and development of terrestrial, fresh water, coastal and marine ecosystems and communities of plants and animals.
135
v
To be an outstanding example of a traditional human settlement, land-use, or sea-use which is representative of a culture (or cultures), or human interaction with the environment especially when it has become vulnerable under the impact of irreversible change.
167
vi
To be directly or tangibly associated with events or living traditions, with ideas, or with beliefs, with artistic and literary works of outstanding universal significance. (The Committee considers that this criterion should preferably be used in conjunction with other criteria).
252
vii
To contain superlative natural phenomena or areas of exceptional natural beauty and aesthetic importance.
148
viii
To be outstanding examples representing major stages of earth's history, including the record of life, significant on-going geological processes in the development of landforms, or significant geomorphic or physiographic features.
96
x
To contain the most important and significant natural habitats for in-situ conservation of biological diversity, including those containing threatened species of outstanding universal value from the point of view of science or conservation.
166