Saturday, February 1, 2020

Man made wonders

Wonders which have been created (mainly) by man.

Green Mound

One of the largest Pre-Columbian shell midden (waste) mounds in the United States. Once it was 15 m high, now some 12 m high,...

Crystal River Rock Art

Three large upright boulders with petrolgyphs. These carved images resemble humans. Possible time of creation – 100 BC. Nearby are burial mounds, platforms. Location, GPS...

Page-Ladson prehistory site

Rich find of prehistoric fossils of animals and artifacts left by people 12,500 – 10,500 BC. Here were found bones of animals living at...

Warm Mineral Springs

An enormous spring of warm mineral water with healing properties. This is one of the candidates for the legendary "Fountain of Youth" in Florida....

Little Salt Spring

Water filled, 61 m deep sinkhole. At the depth of 3 m, the water becomes anoxic. Thanks to this in the sinkhole – spring...

Large Binocular Telescope

One of the most sophisticated optical telescopes in the world with two 8.4 m large mirrors. Built in 1996 - 2004. Location, GPS coordinates: 32.70139 N...

Hoover Dam

Comparatively old and enormous dam for hydropower station, 221 m high. The structure is adorned with details in Art Deco style and was constructed...

The old Navajo Bridge

The oldest of two steel arch bridges across Grand Canyon. Both are more than 140 m above the river, 254 and 277 m long,...

Hoover Dam Bridge

Bridge with the widest concrete arch in Americas, length of span - 320 m. Total length of bridge 579 m. Bridge is built across...

San Jose de Tumacacori church

Spanish colonial church from the late 18th century. A mission was established here in 1691. Location, GPS coordinates: 31.56856 N 111.05087 W Categories: Churches Values: Architecture, Visual Rating: Where is located? North America,...