This replica of the Greek structure is in the heart of Nashville.

Knoxville’s architectural icon was the symbol of the 1982 World’s Fair, even catching the googly eye of Bart Simpson.

Outdoor escalators and art have helped change what was once a notoriously dangerous part of Medellín.

A 10 million-ton rock once worshiped by the Tahamies Indians, accessed by an astounding staircase.

In the middle of one of South America's most historic walled cities lies a bar with an enormous collection of Soviet memorabilia.

This huge pile of volcanic boulders hides a stunning network of secret grottoes.

Commercial airplanes land mere feet over the heads of sunbathing beachgoers on this tiny island.

Few of the many visitors to this resort town know of its hidden Maya ruins.

A lovers' beach, tucked below the surface of the island, provides a safe haven for romance.