Dramatic river bend surrounds a natural red-rocked pedestal.

One of the oldest student jails in Germany.

The ancient heart of Tunis is an enormous maze of narrow streets and alleyways.

The romance of early commercial flight still fills this Art Deco destination.

Berlin's natural history museum houses the world's largest mounted dinosaur and the late beloved polar bear Knut.

A fascinating insight into daily life in the Eastern Bloc.

An unassuming, powerful monument north of the U.S. Capitol bears witness to the resilience of Japanese Americans during a time of grave injustice.

A celebrity from the late Cretaceous period.

There’s a hidden military meme engraved on the World War II Memorial.

The Byzantine, pre-Columbian, and medieval art at this stately mansion are some of the most under-appreciated collections in D.C.

A hidden gem on the lawn of the U.S. Capitol Building designed by landscape architect Frederick Law Olmsted.

A painfully obvious spy house sits right across the street from the Russian Embassy.

The United States Capitol's former columns still stand.

A tiny piece of the Moon is embedded in this stained glass masterpiece.

This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

A ruthless Soviet relocation campaign birthed a new cuisine, and this humble restaurant.

The final resting place of one of Thomas Jefferson's formerly enslaved sons.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

A unique Holocaust memorial tells the personal stories of the Jewish residents exiled from greater Berlin.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

A slice of central Asia in the middle of Berlin.