Whether you are in D.C. on business or vacation, you'll find that it's a fascinating city that is full of history, art, theatre, and dramatic monuments.

In Edinburgh, an ancient fortress looms, the hills are steep, and travelers delight in the hidden charms of the Old Town and New Town. Hike to find spectacular views on Arthur's Seat, shop the downhill streets of the Royal Mile, and visit Edinburgh Castle, an imposing royal fortress that defines this city's skyline.

Situated in the Parque Nacional Iguazú near Puerto Iguazú, these spectacular falls lie just east of the confluence of the Iguazu and Paraná rivers. At least 5000 cubic m of water per second plunge the 70m into the abyss below.

Nicaragua offers travelers a look into centuries of layered history set against striking natural backdrops. Visitors can tour the baroque-style Granada Cathedral, take a boat ride through Las Isletas (a chain of small, volcanic islands in Lake Nicaragua), or climb the bell tower of Iglesia La Merced for sweeping city views.

Munich is known for its architecture, fine culture, the annual Oktoberfest beer celebration, its vibrant cultural scene and its museums. But there is much more to Munich than Oktoberfest! For traditional Bavarian beauty, don't miss out on Neuschwanstein Castle, one of the most visited castles in Germany.