Another one of Luxembourg's historic castles, the now decrepit one in Esch-sur-Sûre was originally built in the Romanesque style as early as the 10th century, with later Gothic additions two centuries later. Inhabited by commoners for a time, it is now but a relic of Medieval Europe open to the public.

The Dominica Museum is housed in a can’t-miss orange building conveniently located opposite the cruise ship berth, adjacent to the tourist information centre. The museum presents a small but intriguing collection of exhibits showcasing a rich tapestry of the island's heritage, encompassing captivating artefacts and photographs that depict natural wonders like coral reefs, and historic milestones such as the slave trade and the origins of the Kalinago people.

The most well-known branch of the Soumaya Museum on Plaza Carso houses the eclectic $700 million private art collection of one of the world’s wealthiest men. The glistening facade of the building with its swooping lines is a must for your Instagram feed. Inside, a spiralling ramp will lead you though several floors filled with works of European and Mexican masters. The museum's collection spans 30 centuries of art including sculptures from Pre-Hispanic Mesoamerica, Mexican art, works by European old masters and masters of modern western art such as Auguste Rodin, Salvador Dalí, Bartolomé Esteban Murillo and Tintoretto. It is called one of the most complete collections of its kind.