This ancient Roman bridge and aqueduct still stands as a wonder of classical construction.

A monument in Washington D.C. marks the spot from which all other roads were supposed to stem.

Spinning silently in the lobby of an Art Deco masterwork is a massive vintage model of the Earth.

This abandoned lighthouse looks like a rusting oil rig, but has managed to survive a number of storms.

A swing to dangle you off the very edge.

Breathtaking and huge 430 year old maps of Italy.

Guitar made of trees, dedicated to a man's lost love.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

A historic covered bridge, only one of two remaining in North Carolina.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

Rummage through this sunken ship, but leave your scuba gear at home.

This floating cinema brings new meaning to the phrase "going out" to the movies.

The first island in the world designated a light-pollution-free astronomical observation point.