The Tallest Abandoned and Unusual Structures on Earth

Today, we�re going to do some urban exploring as we�re searching for the tallest abandoned structures around the world. We�re going to visit Russia, North Korea, the US and Poland on our quest for the rustiest. Once found, we�re going to climb the towers and buildings so make sure you leave your vertigo behind�
1. Ostankino Tower, Moscow � 540 m (1772 ft)


2. Ryugyong Hotel, North Korea � 105 floors, 330 m (1,100 ft)


3. Mystery Tower, somewhere in Russia � around 300 m (1,000 ft)

4. PacBell Building, San Francisco � 26 floors, 133 m (435 ft)

5. Gliwice Radio Tower, Poland � 118 m (385 ft)

6. Broderick Tower, Detroit � 35 floors, 113m (369 ft)