Tallest Lighthouse – Jeddah Light (Saudi Arabia)
Jeddah Light is the tallest lighthouse in the world. The depth of it is 133 meters (436 feet).
Tallest Tomb – Great Pyramid of Giza (Egypt)
Great Pyramid of Giza is the oldest and largest of the three pyramids in the Giza metropolis. The depth of it is 138.8 meters (455.2 feet).
Tallest Roller Coast - Kingda Ka (United States)
In New Jersey, at 138.98 meters (456 feet) you can reach the top of the highest roller coaster in the world. It is also the second fastest one.
Tallest Telescope – Arecibo Observatory (United States)
Located in Puerto Rico, this radio telescope is 150 meters high (492 feet).
Tallest Memorial Cross – Santa Cruz del Valle de los Caídos (Spain)