If you find yourself in Rotterdam, there's a strong chance you've arrived by water. This popular port city (the second largest in the Netherlands) has gone through an architectural renaissance since World War II, with daring, innovative structures dotting the city (cube houses!) and defining its skyline. Café culture is on the rise here, so grab yourself a table and a cup.

Cobh, a colorful harbor town in County Cork, holds a unique place in Irish history and maritime heritage. Once known as Queenstown, it was the final port of call for the Titanic in 1912. Today, the Titanic Experience Cobh offers visitors a chance to step into the footsteps of the 123 passengers who boarded that day. Located in the original White Star Line ticket office, the museum tells personal stories of those who left from this very spot, blending interactive exhibits with original artifacts.

Waikiki, located on the island of Oahu, is a world-renowned destination that perfectly captures the spirit of Hawaii. Known for its iconic crescent-shaped beach, warm turquoise waters, and vibrant nightlife, Waikiki is where Hawaiian royalty once surfed and relaxed, and it remains a hotspot for both relaxation and adventure today.

Welcome to England. The green hills, the noble woodlands, the perfect flowering of architecture and remarkable cultural heritage beckon visitors from around the globe.

Bulgaria is a republic in southeastern Europe. The capital and largest city is Sofiya. Bulgarian culture has been influenced successively by Byzantine, Greek, Russian, and Western cultures.