This Nazi ruin was the site where Hitler was almost blown up by a suitcase bomb.
ATLAS-I is world’s largest wood and glue structure designed to test the radiation hardening of strategic aircraft systems against EMP pulses from nuclear warfare.
The unfinished obelisk is the largest known ancient obelisk and is located in the northern region of the stone quarries of ancient Egypt.
Tucked away in the Caucasus Mountains in the north of Georgia, is the historic province of Khevsureti.
Derinkuyu Underground City is an ancient multi-level underground city of the Median Empire in the Derinkuyu district in Nevşehir Province, Turkey.