Visit the World’s Most Popular Museums & Attractions in 2021

Space Center Houston lets visitors learn the history of NASA and manned space flight. It is located in Houston, Texas, close to Nassau Bay.

The Museum of Illusions Madrid is one of 18 similar museums around the world. It is packed with optical illusions and interactive exhibits for the whole family, with heaps of fun photographic opportunities along the way. It is located in Madrid, Spain.

Sea Life Benalmádena is an aquarium and marine biology research center located in Benalmádena, near Malaga, Spain. The aquarium offers visitors up-close encounters with Spain's marine wildlife and animals from further afloat.

The Western Approaches Museum is as authentic a war museum as you're likely to find. Beneath Liverpool City Centre, this once top-secret bunker was the strategic hub where the Battle of the Atlantic was masterminded. It's barely changed since the doors closed in 1945! Visitors are able to wander from room to secret room, analysing original documents and tools which were used to pinpoint enemy locations and give the Allies the upper hand. There's even one of two surviving phones which had a direct line to Winston Churchill's infamous War Rooms!

Navigate Amsterdam’s historic waterways on a picturesque canal cruise

The Country Music Hall of Fame and Museum in Nashville, Tennessee, is one of the world's largest museums and cultural centers dedicated to the preservation, celebration and interpretation of American country music.