A pedestrian island in the middle of world-famous Times Square emits a strange (and purposeful) humming noise.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

It houses the remains of a 17th-century version of the Titanic.

Debatably clever, or just plain honest hotel advertised as "The Worst Hotel in the World."

One of Amsterdam's narrowest houses is located right across the canal from its widest.

This subterranean funicular is one of the world's smallest subways.

This secret coastal village is studded with pastel-colored houses all piled on top of one another.

One of the best-preserved medieval streets in Europe.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

This statue once earned the distinction as one of the "Three Major Disappointments of the World."

Singapore's landscaping project is home to 18 incredible Supertrees.

The painted and decorated towers of this Hindu shrine were once the tallest structures in one of the oldest cities in India.

This opulent 16th-century Maharaja’s palace is a unique mix of Hindu and Muslim designs.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

The mysterious empty cupola behind the monumental arch points to an ancient prophecy of Delhi.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

This fort dates back to 1588 and was colonized by the Portuguese, Dutch, and English and sits prominently on the Indian Ocean where azure water lap the coast.

A modern tower, symbolizing the legend of a golden egg on top of the tree of life.

An entertainment center in a huge transparent tent.

Iconic pyramid from famed British architect Norman Foster designed to represent all of the world's religious faiths.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

An ancient fortified mound raised over the millennia from settlements built one on top of the other.