The Museum of Evolution was founded in 1999 from the former natural history museums of Uppsala University. It preserves and displays unique collections of animals, plants, fungi, lichen, minerals, dinosaur skeletons, and other fossils. The museum has been collecting the wonders of nature since the 1600s — for research, education, and admiration.

The Library of Congress is the largest library in the world, and its three buildings — the Thomas Jefferson, James Madison Memorial, and John Adams — are well worth exploring. Free tours show off the architecture and highlight the rare collections, while exhibitions, gallery talks, concerts, and lectures give visitors plenty to see and do.

A UNESCO World Heritage site, the Old Town charms with its colourful townhouses and the exceptional atmosphere of its narrow streets. When in the Old Town Market Square, you'll meet a mermaid — the official symbol of the city. Don’t forget to see the Barbican, stop by the bell on Kanonia Street, and walk along the old city walls. You should also visit the Royal Castle. Apart from the royal apartments, the old seat of Polish rulers also houses an art collection with paintings by Rembrandt and Bernardo Bellotto, also known as Canaletto. One awesome way to quickly see all of Warsaw is with a tour in a tiny yellow retro Fiat 125p. Of course, you can ask the guide to tailor the drive to your interests.

Georgetown feels like a little world of its own in D.C., with cobblestone streets, old brick buildings, and a mix of shops and restaurants. You can wander along M Street and Wisconsin Avenue for over 450 options — from coffee shops to trendy boutiques — or grab a bite along the waterfront. It’s a popular spot for students and visitors alike, and walking through the neighbourhood gives a real sense of the city’s history.