The tradition of open-air secondhand and antiquarian bookselling in Paris dates back to the Renaissance.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

This post-Ottoman era church in Athens was built by locals to serve the residents of Anafiotica

A Byzantine-era church hidden in a wooded area below the Acropolis.

Legend says this sacred tree was a gift from goddess Athena.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

The pockmarks across the building's facade are remnants of the Blitz.